Actually, I find the idea of the incarnation harder to grasp than a bodily resurrection.
The plologue of John's Gospel might be the most profound thing ever written...and its claims, the most staggering...
"In the beginning was the Word and the Word was with God..."
Word, (Logos), meaning the eternally originating source of all rationality and order in the universe. Some have interpreted this passage as saying that the Son is the Word in the sense that he is God's perfect self-understanding and self-expression. So perfect, that the self-expression is God too.
John claims the following: that this Word (Logos) was itself a self-conscious being, identifiable with the Hebrew God, and actual architect of the world. What's more, this infinite, un-created being somehow permamently assumed the finite, human nature of a Jewish infant born in Bethlehem...without ceasing to be the Logos.
If you can get your mind around that, belief in a physical resurrection is no sweat.
Actually, if Christ's resurrection wasn't physical, Christianity loses all credibility.
While we're on the subject, what does everyone think of the Shroud of Turin? This thing gives me goosebumps every time I see it.