Overview

Loving-kindness (metta) and compassion (karuna) are the two foundational heart practices in Buddhist meditation. They are part of a set called the brahmaviharas (the four divine abodes), alongside sympathetic joy (mudita) and equanimity (upekkha). Both are concentration practices that cultivate specific qualities of heart by repeating phrases and directing attention toward beings.

The two are often taught together because they answer different but related questions. Metta asks: can I genuinely wish this being well? Karuna asks: can I stay present with this being's suffering without recoiling? They develop in parallel and reinforce each other.

Side by Side

Attribute Loving-Kindness (Metta) Compassion (Karuna) Meditation
Tradition Buddhist (one of the four brahmaviharas) Buddhist (one of the four brahmaviharas)
Pali term Metta: friendliness, benevolence, loving-kindness Karuna: compassion, the trembling of the heart in response to suffering
Object of attention A series of beings (self, benefactor, friend, neutral person, difficult person, all beings) The same series of beings, met specifically in their suffering
Phrases used "May you be happy. May you be peaceful. May you be safe. May you live with ease." "May you be free from suffering. May your suffering ease. May you find peace."
Posture Seated; can be done walking or lying down Seated; can be done walking or lying down
Eyes Closed Closed
Session length 20-45 minutes typical; retreats run longer 20-45 minutes typical; retreats run longer
Goal Develop unconditional friendliness as a baseline; weaken aversion toward difficult beings Develop the heart's capacity to stay present with suffering without numbing or burning out
Difficulty Moderate. First stages easy; the difficult person stage is the work Higher. Sustained contact with suffering is harder than well-wishing
When it goes wrong Becomes performative or saccharine; bypasses real feelings Empathic distress (taking on the suffering); compassion fatigue if not balanced with equanimity
Best for People with self-criticism, isolation, hardened relationships, anger Caregivers, healers, parents, anyone working with suffering professionally or in the family
How long to first benefit 2-4 weeks of daily practice; first hint within sessions 2-4 weeks of daily practice; longer for deep stability

Key Differences

  1. 1

    What each one cultivates

    Metta cultivates friendliness, the basic warmth of wishing well. The phrases are oriented toward flourishing: may you be happy, peaceful, safe, at ease. The practice trains the heart to default to benevolence rather than indifference or aversion.

    Karuna cultivates the capacity to meet suffering. The phrases are oriented toward relief: may your suffering ease, may you be free from this pain. The practice trains the heart to stay open in the face of pain rather than numbing, turning away, or being overwhelmed.

  2. 2

    Where each one gets stuck

    Metta tends to get stuck at the difficult person — the stage where loving-kindness is directed toward someone who has caused harm or feels disliked. The first attempts often feel false. The practice is to keep going anyway. The first attempts often feel false. The practice is to keep going anyway, knowing the warmth will arrive eventually if the seat is held.

    Karuna tends to get stuck in empathic distress: the practitioner takes on the suffering they are meeting and starts to drown in it. This is why karuna is traditionally paired with equanimity (upekkha); without the spaciousness of equanimity, compassion collapses into burnout.

  3. 3

    The order they are usually taught

    Metta first, karuna second. The reasoning: metta builds the basic warmth of the heart toward all beings without yet asking the heart to meet pain. Once that warmth is stable, karuna can be added (meeting suffering specifically) without overwhelming the practitioner.

    Some teachers reverse this for people who already feel pain acutely (caregivers, trauma survivors). Karuna first, with strong equanimity support, can give them tools for what they are already doing involuntarily. Most lineages still teach metta as the foundation.

  4. 4

    How they relate to the other brahmaviharas

    The four brahmaviharas are taught as a set: metta (loving-kindness), karuna (compassion), mudita (sympathetic joy), upekkha (equanimity). They balance each other.

    Metta without karuna becomes shallow: friendliness that cannot meet pain. Karuna without equanimity becomes drowning. Mudita prevents jealousy from corroding metta. Equanimity prevents all the others from collapsing into reactivity. Serious practitioners cycle through all four.

Where They Agree

Both are brahmavihara practices: concentration meditations that cultivate specific heart-qualities through phrase repetition and directed attention. Both work through the same six-stage progression: self, benefactor, friend, neutral person, difficult person, all beings.

Both are seated practices done daily, though both can be brought into walking, lying down, or daily-life forms. Both produce measurable shifts in vagal tone, social connection, and self-reported well-being in research.

And both, with sustained practice, change the heart's default response to other beings: from indifference or aversion toward warmth (metta) and from withdrawal toward presence (karuna).

Who Each Is For

Choose Loving-Kindness (Metta) if…

You are hard on yourself. The first stage of metta (sending loving-kindness to yourself) is often the most useful and most difficult, and it is the stage where harsh inner critics get the most direct treatment.

You are isolated, lonely, or feeling cut off from other beings. Metta rebuilds the felt sense of belonging to a wider field of life.

You have specific difficult people in your life (estranged family, an ex, a coworker, a former friend) and you want to soften the relationship inwardly even if the outward situation cannot change.

You feel emotionally flat or shut down and want to wake up the heart's basic warmth.

Choose Compassion (Karuna) Meditation if…

You are a caregiver: parent of a young child, partner of someone ill, healer, therapist, nurse, teacher of children with hard backgrounds. You meet suffering all day and need a practice that supports rather than depletes that work.

You are working through your own suffering and need a practice that meets it directly without bypass or premature transcendence.

You have done metta and want to deepen by adding the capacity to meet pain specifically rather than only sending well-wishes.

You are interested in the bodhisattva path or Mahayana practices like tonglen, which builds on karuna foundations.

Bottom Line

Start with metta. It is the foundation, the warmer of the two practices, and the on-ramp to the entire brahmavihara family. Sharon Salzberg's Lovingkindness book is the standard Western teaching, and many free guided versions exist.

Add karuna once metta is stable, usually after a few months of daily metta practice. The work of compassion is harder than the work of loving-kindness, and a steady metta foundation makes the deeper karuna work possible without burnout.

For caregivers and people in helping professions, the order can flex: a strong karuna practice paired with equanimity is sometimes the most needed tool. But metta still belongs in the practice set; without it, karuna can curdle.

Connections

Frequently Asked Questions

Are metta and karuna the same thing?

No. Metta is loving-kindness, the warmth of wishing well. Karuna is compassion, the heart's capacity to meet suffering without turning away. They are sister practices that develop together, but they cultivate different qualities and have different phrases.

How are the brahmaviharas related?

The four brahmaviharas (divine abodes) are metta (loving-kindness), karuna (compassion), mudita (sympathetic joy), and upekkha (equanimity). They are taught as a set because they balance each other. Metta without karuna becomes shallow. Karuna without equanimity becomes burnout. Mudita prevents jealousy. Equanimity holds the whole thing steady.

Are the traditional phrases required?

No. The traditional phrases ("may you be happy, peaceful, safe, at ease" for metta and "may your suffering ease" for karuna) are starting points. Many practitioners modify them to feel less foreign. The instruction is to find phrases that genuinely move the heart toward warmth or toward presence with suffering.

What if loving-kindness toward a difficult person feels impossible?

This is the work of the practice. The instruction is to start with the easier categories (self, benefactor, friend, neutral person) and build the warmth there before reaching the difficult person. When you do reach them, the first attempts may feel false. Continue anyway. The warmth arrives eventually if the seat is held.

Is tonglen the same as karuna meditation?

Tonglen is a Tibetan Mahayana practice that builds on karuna. It adds a breath component — breathing in the suffering of others, breathing out relief and well-being. It is more advanced and requires the foundation that karuna meditation provides. Karuna comes first; tonglen extends it.

Can these practices help with self-criticism?

Yes, particularly metta directed toward the self. The first stage of metta is "may I be happy, may I be peaceful," and for many people this is the most challenging and most useful stage. Sustained practice slowly weakens the inner critic by introducing a different inner voice that wishes the self well.