If you’ve never read Dr. Brian Weiss’s books, I recommend that you do. They are fascinating. Many Lives, Many Masters was was the first. Whether you believe in the possibility of past lives or not, he makes a great case for the concept. Only Love is Real is probably the best love story ever, told from client sessions in their past lives.
I’ve heard him speak several times and attended the hypnosis institute he recommended. People thought he was nuts and he was fired from his job when the first book came out, but later re-hired. Ground-breakers tend to face ridicule and must have the patience to weather the storm.