The article treats with the role of the heart in the Orthodox spiritual tradition. According to the teaching of Philocalia, we can find our true self which conceals the real presence of God only on the way of repentance and interior purification. God has his space in our heart. Man who looks for God should learn, in filial obedience to the tradition of the Fathers and in humility, to let the name of God discover itself in the depth of his heart. The process of this gradual discovery of the self-manifestation of the Divine Name has its symbolic analogy in the story of God's name in the Bible from the Creation to the Incarnation.