As a Christian (Catholic) I have to say that I love my religion and accept it beyond a shadow of a doubt, but I can see how someone looking in could have quite a few questions. First thing's first, if you can't accept the Christian God for what he is, then you're paddeling up the wrong river...
It's really the same structure as a 'regular' Sunday Mass. If you go to a church that offers mass in different languages at different times on Sundays, they may combine the various languages during the Midnight Mass.