xzinst's a PUSH of Faith
I realize that the "force" behind the acceptance of faith varies among denominations, but no matter how you look at it, the first step had to be complete (blind) acceptance of God. It was not a logical deduction because, as xzins indicated, there is no logical proof that God exists! How can you then use reaosn to come to faith?!? God does not make sense because aything that is eternal, simple, indivisble, transcendental, bigger then the universe, yet somehow can empty itself into a womb of a woman etc., does not really make much sense.
But at the level of Faith we know it is True that Ο ΩΝ, that which is the essence and origin of "being" itself, was contained within the womb of the Most Holy Theotokos and that that womb of a very human young woman was broader than the heavens because it did contain Ο ΩΝ.
This is not a concept which is difficult for Orthodox to understand or accept since as Kosta will assure you, every Sunday when we attend the Divine Liturgy, when we lift our eyes above the Royal Doors of the iconstasion, we see this:
The icon Theotokos Platytera, Broader than the Heavens is always depicted behind and up above the altar in Orthodox Churches. What the human intellect says makes no sense is for us made both rational and True through the Theotokos Platytera who is the connection "between the Creator and creation, between God and man, heaven and earth."