The ultimate goal of the saint is to imitate God and live the life of deification (theosis). St. Maximos the Confessor (seventh century) writes that the saints are men who have reached theosis; they have avoided unnatural development of the soul, that is, sin, and tried to live the natural way of life (i.e., living according to created nature), turning and looking always towards God, thus achieving total unity with God through the Holy Spirit (On Theology, 7.73).