The 4 immeasurables (The Boundless Mindstates)

The Basic Passage on the Four Sublime States from the Discourses of the Buddha

I.

Here, friends, a disciple dwells pervading one direction with his heart filled with loving-kindness, likewise the second, the third, and the fourth direction; so above, below and around; he dwells pervading the entire world everywhere and equally with his heart filled with loving-kindness, abundant, grown great, measureless, free from enmity and free from distress.

II.

Here, friends, a disciple dwells pervading one direction with his heart filled with compassion, likewise the second, the third and the fourth direction; so above, below and around; he dwells pervading the entire world everywhere and equally with his heart filled with compassion, abundant, grown great, measureless, free from enmity and free from distress.

III.

Here, friends, a disciple dwells pervading one direction with his heart filled with sympathetic joy, likewise the second, the third and the fourth direction; so above, below and around; he dwells pervading the entire world everywhere and equally with his heart filled with sympathetic joy, abundant, grown great, measureless, free from enmity and free from distress.

IV.

Here, friends, a disciple dwells pervading one direction with his heart filled with equanimity, likewise the second, the third and the fourth direction; so above, below and around; he dwells pervading the entire world everywhere and equally with his heart filled with equanimity, abundant, grown great, measureless, free from enmity and free from distress.

Digha Nikaya 13

[Samana]

The Four Sublime States are also known as the Brahma Viharas.

This is another version in SN 46.54

Mettam Sutta: The Brahma-viharas

And how, monks, does a monk cultivate the heart's release by loving-kindness?[What is its goal, its excellence, its fruit and its outcome?

"In this case, monks, a monk cultivates the enlightenment-factor of mindfulness accompanied by loving-kindness and similarly the enlightenment-factors of investigation-of-states, energy, rapture, tranquillity, concentration, equanimity, accompanied by loving-kindness which is based on detachment, dispassion, leading to maturity of surrender.

If he wishes to dwell perceiving the repulsive in what is not repulsive, he dwells thus perceiving the repulsive. If he wishes to dwell perceiving the unrepulsive in what is repulsive, he dwells thus perceiving the unrepulsive. If he wishes to dwell perceiving the repulsive both in what is repulsive and what is not repulsive, if he wishes to dwell perceiving the unrepulsive in both..., he dwells thus. If he wishes, avoiding both the repulsive and unrepulsive, to dwell equanimous, mindful and clearly aware, he dwells thus, equanimous, mindful and clearly aware, or, attaining the heart's release called 'beautiful' he abides there.

I declare that the heart's release by loving-kindness has the beautiful for its excellence. This is the attainment of a wise monk who penetrates to no higher release.

"And how, monks, does a monk cultivate release by compassion? What is its goal, its excellence, its fruit and its outcome?

"In this, monks, a monk cultivates the enlightenment-factors of mindfulness... equanimity accompanied by compassion... [as above]... he dwells thus, equanimous, mindful, clearly aware or, by passing utterly beyond all perception of objects, by the going-down of perceptions of sensory reactions,by disregarding perceptions of diversity, thinking 'space is infinite,' he attains and dwells in the sphere of infinite space.

I declare that the heart's release by compassion has the sphere of infinite space for its excellence. This is the attainment of a wise monk who penetrates to no higher release.

"And how, monks, does a monk cultivate the heart's release by sympathetic joy? What is its goal, its excellence, its fruit and its outcome?

"In this, monks, a monk cultivates the enlightenment-factors of mindfulness... equanimity accompanied by sympathetic joy... [as above]... he dwells thus, equanimous, mindful, clearly aware or, by passing utterly beyond the sphere of infinite space, thinking 'consciousness is infinite,' he attains and dwells in the sphere of infinite consciousness.

I declare that the heart's release by sympathetic joy has the sphere of infinite consciousness for its excellence. This is the attainment of a wise monk who penetrates to no higher release.

"And how, monks, does a monk cultivate the heart's release by equanimity? What is its goal, its excellence, its fruit and its outcome?

"In this case, monks, a monk cultivates the enlightenment-factors of mindfulness, investigation-of-states, energy, rapture, tranquillity, concentration, equanimity accompanied by equanimitY which is based on detachment, dispassion, leading to maturity of surrender. If he wishes to dwell... [as above]... he dwells thus, equanimous, mindful and clearly aware. Or by passing utterly beyond the sphere of infinite consciousness, thinking 'there is nothing,' he attains and dwells in the sphere of nothingness.

I declare that the heart's release by equanimity had the sphere of nothingness for its excellence. This is the attainment of a wise monk who penetrates to no higher release."

http://www.accesstoinsight.org/tipit...054x.wlsh.html
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The boundless states are beautiful May all beings find infinite love, compassion, altruistic joy, and equanimity.