What does he mean when he says he was raised Judeo-Christian and is now Tibetian Buddhist and existentalist?

I was raised by a Christian mother (and father) but I rejected it as a young teen, pouring myself into the study of physics and math. At age 20 I discovered (by reading philosophy books) that my world view was that of the Buddha, and I quickly identified with Tibetan Buddhism and some of its 'psychic powers'. Ten years later I began my career as a university Professor of Physics and also began pursuing my interest in 'psychic powers' by beginning an academic physics research program in what I called 'paraphysics' (the physics of the paranormal realm). Five years later I had an unexpected encounter with the Creator of the Universe and was truly 'born anew' (details available)! As I devoured the (Judeo-Christian) Scriptures, like C.S. Lewis I was 'surprised by joy' (not like his Joy, but by a deep and finally satisfying joy of knowing who I was and why and how we were all here)! Over the past 34 years it has only gotten more exciting and rewarding as I learn of the Creator's Teachings, Wisdom, and Love! (Even my practice and understanding of physics grew in depth over the years). So my advice to you and your friend is not to be content with your present life, but rather to zealously pursue the (Absolute) Truth! Do not rest until you finally meet and get to know Him personally, for He is "the Way, the Truth, and the Life, and no one comes to the (Heavenly) Father (Creator) except by" Him... (He will reveal His Name to you personally!)