upekkhā | equanimity – the wish that beings dwell in the great impartiality that?s free of attachment and aversion

mudita | great joy – the wish that beings not be separate from the great bliss that?s free of all suffering

karuṇā | compassion – the wish that all beings be free of suffering and its causes

maitri | loving-kindness – the wish that all beings have happiness and its causes

The brahmavihāras (sublime attitudes, lit. “abodes of brahma”) are a series of four Buddhist virtues and the meditation practices made to cultivate them. They are also known as the four immeasurables (Sanskrit: apramāṇa, Pāli: appamaññā)