I often refer to Jung's treatise on the "Shadow Self" in my ministry. I've also been known to dip into some things by Drunvalo Melchezidek. As for morality...I tend to lean towards both Aristotle and C.S. Lewis. Thank God I'm a Franciscan, or the Holy See would string me up.
A Franciscan, not something you see everyday. Not knocking it or you, just don't hear many people who are.