Wikipedia
( Pali; Skt.: ) is a Buddhist concept of "spiritual friendship" within Buddhist community life, applicable to both monastic and householder relationships. One involved in such a relationship is known as a "good friend," "virtuous friend," "noble friend" or "admirable friend" .
Since early Buddhist history, these relationships have involved spiritual teacher-student dyads as well as communal peer groups. In general, such is a supportive relationship based on shared Buddhist ethical values and the pursuit of enlightenment.
In contemporary Western society, this concept has gained increased currency within the Triratna Buddhist Community (formerly the Friends of the Western Buddhist Order) (UK) and the Spirit Rock Meditation Center (USA).