How to Purify Past Karma with Vajrasattva Practice: A Step-by-Step Guide
Why Purifying Past Karma Matters?

Every spiritual tradition recognizes that regret can weigh on the heart. Buddhism goes a step further and asks a practical question: what do we do with that weight? Ignoring it does not make it disappear. Drowning in guilt does not heal it either. Purification offers a third way, one that is honest about harm and at the same time confident that the mind can change.
There are three reasons this matters on the path.
- It lightens the mind: Unresolved regret and hidden self-judgement make meditation restless. A practitioner who has acknowledged past actions sits with more ease, because there is less to avoid.
- It prevents small faults from growing: The tradition teaches that even a minor negative action can multiply over time if it is left untouched. Purifying early, and often, keeps the mind from accumulating heavy habits.
- It clears obstacles to realization: Negative karma is described as one of the main obstructions to progress in meditation, study, and compassion. Cleansing it is therefore not a side practice. It is a foundation for everything that follows.
This is why purification is placed at the very start of the Vajrayana path, in the preliminary practices known as Ngöndro, before more advanced deity practice begins.
Understanding Karma: Why Purification Is Possible
To see why purification works, it helps to recall how karma itself is understood. Buddhist teachers commonly summaries four principles:
- Karma is certain: Harmful actions bring suffering, and positive actions bring happiness.
- Karma multiplies: A small cause can produce a much larger result.
- Karma is not lost: An action that has been done does not simply vanish with time.
- Karma must be created to be experienced: If a cause is purified or never created, its result does not ripen.
That last principle is the opening for purification. If every karmic result were fixed the moment an action was done, there would be nothing to practice. As results depend on causes and conditions, the right conditions can change what ripens.
The tradition also teaches that negativity is not the mind's true nature. Anger, greed, and confusion are described as temporary stains on a mind that is fundamentally clear and capable of awakening. A stain can be washed from a cloth because the cloth itself is not the stain. In the same way, purification does not create a new, better mind. It uncovers the clarity that was always there.
Vajrasattva: The Buddha of Purification

Vajrasattva, known in Tibetan as Dorje Sempa, is a figure of great importance across the esoteric Buddhist traditions of the Himalayas. His name is often rendered as "Vajra Being" or "Diamond Being," pointing to a nature that is pure, indestructible, and clear. He is regarded as a universal buddha who gathers the body, speech, and mind of all the buddhas into a single form.
In Tibetan Buddhism he is the principal deity of purification. In the Nyingma tradition he is also honoured as a meditational deity in his own right, with many oral and treasure lineages devoted to him. In the New (Sarma) schools, he appears in different forms, from the solitary Vajrasattva associated with the Yoga Tantras to the form with consort that belongs to the Highest Yoga Tantra class. He is also understood as the inner aspect of the primordial buddha Vajradhara, representing all the buddha families.
His iconography carries the meaning of the practice itself:
- White colour: the natural purity and clarity of the mind, free of stain.
- Vajra held at the heart: the indestructible wisdom of emptiness.
- Bell held at the hip: compassion and the sound of wisdom, the two inseparable partners of the path.
- Peaceful, youthful expression: purification is meant to be gentle and encouraging, not harsh.
Tradition holds that Vajrasattva made a profound vow to purify the negativities of all beings who rely on him and recite his mantra. This is why he is approached not as a distant judge but as a compassionate friend, one who meets our faults with kindness rather than blame.
The Four Opponent Powers: The Heart of Purification
Visualisation and mantra alone are not considered enough. The tradition teaches that purification is effective only when four powers are present, which are called the four opponent powers. They are embedded in the Vajrasattva sadhana, but they can also be used on their own at any moment, whenever we notice a mistake.
1. The power of reliance (dependence): We begin by taking refuge and generating bodhichitta, the wish to become enlightened for the benefit of all beings. Relying on Vajrasattva, who is seen as an embodiment of all the buddhas, gives the practice strength and direction. Reliance is the support on which everything else rests.
2. The power of regret: We bring to mind the actions we wish to purify and feel honest regret for them. This is not self-hatred. Regret in this sense is a clear recognition that an action caused harm and a sincere wish that it had not happened. Teachers often compare it to realising we have swallowed something poisonous: the response is not despair but an urgent wish to apply the antidote.
3. The power of the remedy (remedial action): This is the positive action that counters the negative one. In Vajrasattva practice, the remedy is the visualisation of purifying light and nectar together with recitation of the hundred-syllable mantra. Other remedies include prostrations, offerings, generosity, and study.
4. The power of the resolve (restraint): We promise not to repeat the action. If we cannot promise never to do it again, we promise to refrain for a set period, such as a day, a week, or a month, and extend it as our mindfulness grows. A realistic vow is far better than a grand one that is quickly broken.
A well-known story from the Kadampa tradition shows how seriously the powers were used. The master Atisha was said to stop whatever he was doing the moment he noticed a lapse, even while travelling, kneel down, and purify it on the spot with the four powers. If a great master worked this way, practitioners at any level can take it as encouragement to purify immediately rather than let faults accumulate. We rarely bring all four powers to full strength in a single session, the practice is meant to be done repeatedly.
How to Practice Vajrasattva: A Step-by-Step Guide
The following outline follows the general structure shared by most Vajrasattva sadhanas. Practices differ slightly between lineages, so take it as a map, and when possible, receive the specific instructions of your own teacher.
A note on the form of visualisation: the practice of visualising Vajrasattva alone, seated above your head, is traditionally open to all sincere practitioners. The form with consort is reserved for those who have received the relevant Highest Yoga Tantra initiation.
Step 1: Prepare and set your motivation
Find a quiet place and sit comfortably with a straight back. Settle the breath for a few minutes. Then generate a clear motivation: you are purifying not only for your own peace, but so that you can be of greater benefit to others.
Step 2: Take refuge and generate bodhichitta
Recite the refuge and bodhichitta verses of your tradition, taking refuge in the Buddha, Dharma, and Sangha, and generating the wish to attain enlightenment for all beings. This is the power of reliance.
Step 3: Visualise Vajrasattva
Imagine Vajrasattva a few inches above the crown of your head, facing the same direction as you. He is white and radiant, seated on a white lotus and moon disc, and made entirely of light. In his right hand, at his heart, he holds a vajra. In his left hand, at his hip, he holds a bell. At his heart, on a moon disc, stands the syllable HUM, encircled by the hundred-syllable mantra.
Step 4: Bring to mind what you wish to purify
With Vajrasattva before you, recall the actions you regret, including those done knowingly and those done out of confusion, in this life and in past lives. Let the feeling of regret arise honestly and without exaggeration. This is the power of regret.
Step 5: Recite the mantra while visualising purification
As you recite the hundred-syllable mantra, imagine white nectar and light flowing down from Vajrasattva's heart, entering through the crown of your head, and filling your body. It washes away negativity, illness, and obscuration, which leave your body as dark smoke or sludge and are absorbed into the earth. Continue until you feel the body and mind are completely clean and clear. This is the power of the remedy.
Step 6: Make your promise
Looking up at Vajrasattva, make a heartfelt resolve to avoid these actions in the future, for a period you can honestly keep. This is the power of the resolve.
Step 7: Receive assurance and dissolve
Imagine Vajrasattva, delighted with your sincerity, tells you that all your negativity has been purified. He then melts into light and dissolves into you. Your body, speech, and mind become inseparable from his pure body, speech, and mind. Rest in this clarity for a while.
Step 8: Dedicate the merit
Close the session by dedicating whatever merit has been gathered to the awakening of all beings. Dedication protects the merit and gives the practice its full meaning.
The Hundred-Syllable Mantra of Vajrasattva
The hundred-syllable mantra is the core of the practice. It is recited in Sanskrit, and the pronunciation used by Tibetan practitioners differs slightly from the written Sanskrit. A commonly used transliteration is:
oṃ vajrasattva samayam anupālaya vajrasattva-tvenopa-tiṣṭha dṛḍho me bhava sutoṣyo me bhava supoṣyo me bhava anurakto me bhava sarva-siddhiṃ me prayaccha sarva-karma su ca me cittaṃ śreyaḥ kuru hūṃ ha ha ha ha hoḥ bhagavān sarva-tathāgata-vajra mā me muñca vajrī-bhava mahā-samaya-sattva āḥ
In general terms, the mantra asks Vajrasattva to keep the practitioner's commitments intact, to stay close, to grant spiritual accomplishment, to make the mind virtuous, and not to abandon the practitioner. It is understood to invoke all the buddhas, and it is often called the quintessence of mantras.
There is also a shorter form, OM VAJRASATTVA HUM, which is a condensed version of the long mantra and is used when time is limited. Whenever possible, learn the pronunciation from a qualified teacher or a recording, and recite it with attention rather than speed.
How Often to Practice: Daily Recitation and Ngöndro

How much should you practice? The answer depends on your situation and your teacher's guidance.
- Within Ngöndro: In the preliminary practices of Tibetan Buddhism, practitioners accumulate 100,000 recitations of the hundred-syllable mantra. Many traditions add an extra 10 percent, and then 1 percent of that, to make up for mistakes, bringing the count to 111,000. A full-time retreat usually takes two to three months, though the same count can be completed as a steady daily practice over a longer period.
- As a daily practice: If a large retreat is not possible, a short daily session is highly valued. Many teachers encourage reciting the long mantra at least 21 times each day, always within the context of the visualisation and the four powers, rather than as mechanical repetition.
- A key point on counting: Mantras recited outside the framework of a sadhana are still beneficial, but they are not usually counted toward the 100,000.
Consistency matters more than quantity. A calm, sincere session each morning does more than an exhausting marathon followed by months of neglect.
Signs of Purification and Common Mistakes
Purification is rarely dramatic. Traditional teachings point to gradual changes: a mind that feels lighter, less reactive, and less defended, along with a greater willingness to take responsibility and to forgive. Some practitioners also report vivid dreams or emotional release. These experiences are not goals, and their absence is not a sign of failure.
Common mistakes include:
- Skipping regret: Without honest regret, the practice becomes empty recitation.
- Falling into guilt: The opposite error is wallowing in self-blame. Regret should motivate change, not punish.
- Forgetting the resolve: Purifying an action while planning to repeat it undermines the process.
- Neglecting bodhichitta: The motivation shapes everything. Practice for the benefit of all beings, not as a way to feel superior or to escape consequences.
- Treating it as a one-time fix: Purification is repeated, patiently, over a lifetime.
If strong emotions arise during practice, go gently. Purification is meant to bring relief, and a teacher or a trusted practice community can offer valuable support.
Preparing Your Practice Space
A dedicated space helps the mind settle into practice. You do not need an elaborate shrine. A clean shelf or table is enough, arranged with respect.
Many practitioners place an image or statue of Vajrasattva at the centre, representing the presence of enlightened purity. Beside it, a vajra and bell remind us of the union of wisdom and compassion, the two wings of the path. Offerings such as water, a lamp or candle, and incense express generosity and set the mood for practice.
When choosing sacred objects, quality and authenticity matter, since a well-made image becomes a lasting support for meditation. Traditional Newar artisans of Patan, in the Kathmandu Valley, have for generations created statues, thangkas, and ritual implements according to the iconographic measurements and proportions described in the texts. At Evamratna, we source such pieces directly from these artisans, so that the objects on your altar carry the care and devotion of the tradition they come from.
Frequently Asked Questions
Do I need an initiation to practice Vajrasattva?
The practice of visualizing Vajrasattva alone above your head can be done by anyone with sincere motivation. The visualization with consort is reserved for those who have received the relevant Highest Yoga Tantra initiation. If in doubt, ask a qualified teacher.
Can Vajrasattva practice erase all karma instantly?
Purification is understood as a process, not an instant erasure. When the four powers are strong, even a single session can be powerful, but because we rarely achieve all four at full strength, the practice is repeated.
How long does a session take?
A short sadhana can take 15 to 30 minutes. Longer sessions suit retreat, while brief sessions with 21 recitations are suitable for daily life.
Conclusion
Purifying past karma is not about erasing the past or punishing ourselves for it. It is about meeting our mistakes with honesty, applying a powerful remedy, and choosing a different direction. Vajrasattva embodies this approach. He shows that the mind is fundamentally pure, that our faults are temporary, and that change is always possible. Begin simply. Take refuge, bring Vajrasattva to mind, feel honest regret, recite the mantra, make a realistic promise, and dedicate the merit. Do it again tomorrow. Over time, the weight we carry grows lighter, and the clarity beneath it becomes easier to see.
