Christianity is not rational. It is miraculous. Jesus loves us in spite of us. He was resurrected from the dead and is God was God as well as man. Based on what we know, this is impossible. Faith requires belief in what it impossible.
The mystery of the Trinity boggles the minds of men because we are made, we are not God. It is okay to not understand everything. Be. Love. Serve. Repeat. This is the way.
Intersection of principles and practices...