Invading God's Universe is about David Lawrence's attempt to adjust to the possibility of God. He seeks his own soul but isn't even sure that he has a soul. He sees himself as a book written by heaven or maybe not. He is confused and searching. He boldly says that "what God likes about me is that I reject him." God does not need our belief. He is himself. He is God.
David wrestles with God and feels that God likes it that way. He doesn't want to bother God. He doesn't want to annoy him by his "selfishness / And demanding prayers." He feels that God "dislikes religion. / And settles for the spirit." God is not formulaic. He is love. Love is not codification. It is free spirit.
David feels God's presence when he is alone. He does not like gatherings for prayer because he wants to have his own direct connection with God. He does not read the Bible. He is the Bible. He is God's text. He is written. God is or isn't the pen.
He is a Doubting Thomas but he doesn't doubt that he feels a cosmic presence within him.