Hesychasm

Hesychasm (Greek: ἡσυχασμός, hesychasmos, from ἡσυχία, hesychia, "stillness, rest, quiet, silence") is an eremitic tradition of prayer in the Eastern Orthodox Church and Eastern Catholic Churches of Byzantine Rite practised (Gk: ἡσυχάζω, hesychazo: "to keep stillness") by the Hesychast (Gr. Ἡσυχαστής, hesychastes).