That is so Orthodox Kolo, so beautiful. When my grandmother died, my mother was crushed, evend though she was as Orthodox as one can be. She didn't eat or drink naything for a couple of days and was beginning to look very ill. The Orthodox priest came and blessed the house. He then sat with my mother and said to her "You are a believer?" and my mother says "Yes, Father, I am," tears running down her cheeks and her voice quivvering. He then said "Then, as a believer, you know that life is only a comma, and not a full stop." After those words my mother came back to life. It was a powerful message that reached her spirit profoundly. No big speaches, no special doctrinal statements, just a simple statement of faith. Orthodoxy!
Now, this is not exactly what the topic was, but it is that faith that keeps us going even when everything else is hopeless, and of all humans Theotokos' faith was tested to the max. One of the most memorable scenes in the "Passion of the Christ" that I keep watching over and over is not the floggin and torturing, but the scenes of our Blessed Mother of God watching her Son. She not once cast an anrgy look at the Jewish High Priests, the Romans or the crowd. How many of us could do that?! She could only watch Him, knowing that, no matter how difficult, it was God's decision. That kind of sinlessness, faith and devotion to God by an ordinary, mortal woman is our hope that we too can deny sin -- not because some of us are "elect" but because we want to.
In other words, for the Orthodox, a Theotokos who was concieved sinless, as the Immaculate Conception implies, by God's intervention, is not a feat of her faith and humanity and, consequently, not within the realm of our human capacity to even try to emulate.