Such a spirituality cannot take place where is affirmed an evaluative progress of men in relationship with a divinity conceived as an impersonal essence. This process cannot have another result than the lost of men in the impersonal divinity.
The personal God, therefore supreme source of love, cannot be conceived as singular person, but as a communion of Persons in perfect union. This is why the Christian teaching about a trinity of three Persons in a union of being is the only that can constitute the basis of a complete spirituality of man, understood as a full communion with God in love, without being lost in it.
The Holy Trinity is the main revelation of the New Testament therefore of the Christianity, after which the divinity or the essence of God exists as Trinity of persons an hypostasis. The dogma about the Trinity of the divinity is a cardinal dogma, because has implications over the whole Christian teaching. The Eastern tradition departs form the reality of the hypostases in which God Manifests at their consubstantiality, following the principle that from the identity of work emerges the unity of nature.
The spiritual perfection of man, through the eternal union with God, without confusion, cannot take place other than there where is believed in an eternal eschatology of man, in the happy union with God. This kind of eschatology is the natural consequence of the Trinitarian God. The unity of man for eternity is guaranteed and mediated only there where One of the divine Persons was incarnated as man for eternity, manifesting in this the eternal love of God for man as men. Orthodox Christianity has maintained the spirituality proper to the Christianity revealed in Christ through the fact that has kept the mystery of Trinitarian communion of the Persons in God, not weakened by a rationalist philosophy which, accentuating more the unity of God, has put more in evidence His essence. From this accentuation of the single essence of God, that tries to avoid the paradoxical combination with the trinity of persons, has resulted the doctrine of the "Filioque," of the procession of the Holy Spirit from the Father and the Son, that is from divine essence, considering thus the essence as cause of the Person, that leads in fact to an impersonal god, that is pantheist.
