Theosis (Eastern Orthodox theology)

In Eastern Orthodoxy deification (theosis) is a transformative process whose goal is likeness to or union with God. As a process of transformation, theosis is brought about by the effects of katharsis (purification of mind and body) and theoria ('illumination' with the 'vision' of God). According to Eastern Orthodox teaching, theosis is very much the purpose of human life. It is considered achievable only through a synergy (or cooperation) between human activity and God's uncreated energies (or operations).