In the Buddhist tradition, the cultivation of the heart includes four “divine abodes” (brahma-viharas): metta (loving-kindness), karuna (compassion), mudita (sympathetic joy), and upekkha (equanimity). The first two — metta and karuna — are often confused, but they are distinct practices with different flavors and different uses.

This article explores the relationship between the two practices, how they are used together, what compassion is and is not, and why the full set of brahma-viharas is a complete training of the heart.

What each one is #

  • Metta is the wish for the well-being of another — and the warm, open-hearted feeling that goes with that wish. It is unconditional, and it does not depend on the other person’s situation. You can feel metta for an enemy.
  • Karuna is the wish for the relief of suffering of another. It arises in response to pain — yours or someone else’s — and moves toward easing it.

A useful metaphor: metta is the radiant warmth of the sun shining equally on all. Karuna is the rain that falls specifically on a parched field. Both are forms of love, but they are different in their flavor and their function.

Another way to put it: metta is love that radiates outward without object; karuna is love that responds to a specific situation of suffering. A mother may have metta for her children even when they are happy and well; karuna arises when they are in pain. The two are not in conflict; they are different expressions of the same underlying care.

How they are practiced together #

In the brahma-vihara sequence, metta comes first. The traditional reason: you cannot offer genuine compassion from a depleted or hostile heart. Metta is the foundation; karuna builds on it.

In practice, the two are often alternated in a single sitting. A common pattern:

  • Begin with several minutes of metta toward yourself and a loved one
  • Bring to mind someone who is suffering — perhaps a friend going through a hard time
  • Let metta transform, in the same sitting, into karuna: “May you be free from suffering. May you find peace.”
  • Return to metta for yourself, then expand outward

The transition from metta to karuna is natural. When the heart is warm and open, the suffering of others comes into focus, and the warm metta becomes specific — turned to the relief of that particular suffering. The practice is to allow this transition, without forcing it.

A useful visualization: the metta is a steady warmth, like a fire in a hearth. Karuna is the warmth turned toward someone who is cold. The fire does not need to be different; the direction of the warmth changes.

What compassion is not #

A few common misconceptions about karuna:

  • It is not pity. Pity involves a felt distance; karuna arises from a heart that knows itself vulnerable in the same way. The compassionate person is not “above” the one who suffers; they are with them.
  • It is not burnout. The traditional karuna bhavana practice includes protection for the practitioner — the recognition that you cannot pour from an empty cup. The compassion that depletes is not the Buddhist ideal; the compassion that is sustainable comes from a heart that is also at peace.
  • It is not problem-solving. Karuna holds the suffering; the response may be action, but the practice is the holding. The doctor who can be fully present with a patient, without rushing to fix, is practicing karuna. The action comes from the presence, not the other way around.
  • It is not sentimentality. Karuna can be fierce. The Buddha compared compassion to a mother’s love for her only child — fierce, protective, all-encompassing. A karuna practitioner can be direct, even fierce, in protecting beings from harm.
  • It is not selective. True karuna extends to all beings, including those one finds difficult. The practice of karuna toward a difficult person is a central part of the bodhisattva path.

Why both matter #

A path of only metta can become abstract — goodwill without engagement. A path of only karuna can become heavy — engagement without refreshment. Together, they balance the heart: a warmth that does not burn out, and a responsiveness that does not freeze.

The metta provides the foundation. The karuna provides the response. A practitioner who has developed metta has the warmth that karuna requires; a practitioner who has developed karuna has the responsiveness that metta alone does not provide. The two are not opposed; they are complementary.

The full brahma-vihara sequence adds mudita (the sympathetic joy at others’ happiness) and upekkha (the equanimity that holds all of this without grasping). The four together form one of the most complete trainings of the heart in any spiritual tradition.

The order of the four #

The four brahma-viharas are traditionally developed in this order:

  1. Metta — the foundation, the warmth, the unconditional goodwill
  2. Karuna — the response to suffering, the wish for relief
  3. Mudita — the joy in others’ happiness, the antidote to envy
  4. Upekkha — the equanimity that holds all of this without grasping

The order is not arbitrary. Metta is first because it is the foundation — without the warm heart, the other practices are difficult. Karuna is second because it is the natural response to suffering when the heart is warm. Mudita is third because it extends the warmth to the joy of others, including the joy of one’s own good fortune. Upekkha is fourth because it is the even-mindedness that lets the previous three settle without becoming unbalanced.

A useful image: metta is the steady warmth of the sun; karuna is the sun’s warmth turned to a specific place of suffering; mudita is the warmth turned to a place of joy; upekkha is the sun shining on all places equally, without preference.

The relationship to the bodhisattva path #

In the Mahayana tradition, the brahma-viharas are part of the bodhisattva path. The bodhisattva vows to attain Buddhahood for the benefit of all beings, and the cultivation of the four brahma-viharas is a central part of that vow.

The bodhisattva path is, in this sense, the extension of the brahma-viharas to all beings. The metta that begins as warmth for oneself and a few loved ones becomes, in the bodhisattva, warmth for all sentient beings. The karuna that begins as a response to a friend’s suffering becomes, in the bodhisattva, the response to the suffering of every being. The mudita and upekkha similarly extend.

This is not a small project. The bodhisattva path takes many lifetimes to complete, and the cultivation of the brahma-viharas is the work of each lifetime. But the foundation is laid in each moment of practice. Every time the metta extends to a difficult person, the bodhisattva path advances. Every time the karuna responds to suffering without flinching, the bodhisattva path advances.

The role of the bodhisattva of compassion #

In the Mahayana tradition, Avalokiteshvara (Kuan Yin in Chinese, Kannon in Japanese) is the bodhisattva of compassion. The figure embodies karuna — the response to the suffering of the world. The most famous chapter of the Lotus Sutra — Chapter 25, the “Avalokiteshvara Sutra” — describes how Avalokiteshvara appears in many forms to respond to the cries of suffering beings.

The figure is a useful support for the practice of karuna. Visualizing Avalokiteshvara, or any compassionate figure, can help the meditator access the quality of karuna. The visualization is a support, not a goal; the practice is to develop the same quality of compassion in oneself.

The relation to the other divine abodes #

The four brahma-viharas are not just four separate practices. They are four aspects of a single underlying quality — the open, warm, wise heart. The practices develop different facets of this quality:

  • Metta develops the warmth
  • Karuna develops the responsiveness
  • Mudita develops the joy in others’ well-being
  • Upekkha develops the even-mindedness

The mature practice integrates all four. The meditator who has developed all four has a heart that is warm, responsive, joyful, and even — a heart that can meet any situation with wisdom and kindness.

A useful test: at any moment, ask which of the four is most present. If you are in a situation of suffering, karuna may be most present. If you are with a friend who is flourishing, mudita may be most present. If you are holding a difficult person with kindness, metta may be most present. If you are observing a situation without attachment, upekkha may be most present. The practice is to develop all four so that any situation can be met with the appropriate response.

How the practices are cultivated in daily life #

The four brahma-viharas are not just formal meditation practices. They are ways of being in the world. A useful way to cultivate them is to ask, throughout the day, “what is the quality of my heart right now?” If the heart is cold or hard, metta can be called up. If someone is suffering, karuna can be called up. If someone is flourishing, mudita can be called up. If the situation is simply what it is, upekkha can be called up.

This is a kind of continuous practice. The formal sitting is the training; the daily life is the application. Over time, the four qualities become more accessible, and the practitioner can call them up as needed.

Common questions #

Can I develop karuna without developing metta first? The traditional order suggests metta first, but in practice the two are often developed together. A practitioner who begins with karuna may find that metta develops naturally. The two are not strictly sequential.

Is karuna the same as empathy? Empathy is related to karuna but is not identical. Empathy is the ability to feel what another feels; karuna is the wish for the relief of the other’s suffering. Empathy can become overwhelming; karuna holds the suffering without being overwhelmed.

Can karuna be developed for someone one does not know? Yes. In fact, the bodhisattva path requires karuna for all beings, including those one has never met. The practice of radiating karuna to all beings in the cardinal directions is a traditional form of the meditation.

What is the relationship between karuna and action? Karuna naturally expresses itself in action, but the relationship is not strict. The practice of karuna can be done without immediate action; the action comes when the situation calls for it. The practice is the quality of the heart; the action is the expression of that quality in the world.

The bottom line #

Metta and karuna are not in competition. They are two aspects of a single underlying quality — the open, warm, wise heart. Metta is the warmth; karuna is the responsiveness. Together, they form a complete training of the heart in kindness.

The practice is to develop both, and to allow them to inform each other. A practitioner who has developed metta has the warmth that karuna requires. A practitioner who has developed karuna has the responsiveness that metta alone does not provide. The mature practice combines both, and the mature heart is one that is both warm and responsive.