Most probably recognize some form of transformation as at least a part of the mission of Jesus. In the typical description of salvation the church teaches that the saved individual will be changed in some way, either through personal commitment or divine intervention or both. Old behaviors and attitudes will be replaced by new ones, less attuned to man's natural tendencies. In fact, this demonstrated newness is routinely cited as proof that salvation is real and not imagined or fraudulent.
In addition, the Orthodox view of salvation implies a transformation of God. Somehow salvation transforms God's ill will toward an individual and provides the means by which He can cease to demand retribution for wrongdoing. Thus Jesus has supposedly transformed both God and man.
It is easy to see that man needed a transformation, given the lessons of human history. It is a bit more difficult to conceive of why the immutable God needed to be changed. It is doubly mysterious when we consider that this change supposedly came about by God separating a part of Himself to perform a ritualistic act in human history. God's Will is somehow manipulated and altered by compartmentalizing Himself into three functions, some of which work to counteract the other. It's a strange story any way you cut it. Strange things can in fact be true, but strangeness should still engender skepticism.