Dear Gabriel,
People often wonder at the complexity of the Trinity and when priests give homilies on the subject they say that it is one of the most difficult Sundays to preach on, but for me the logic is not difficult. A God that exists obviously can’t be like us. He can’t just have a single intelligence but must have many parts. Thus to me a concept like the Trinity makes sense. God then is part human incarnation, part spirit, and part resident of heaven.