Life Between Lives (LBL) is a technique developed by Dr. Michael Newton and is described in his books, Journey of Souls and Destiny of Souls.

Gayle Earle is one of the very few people trained by Dr. Newton himself in the methods for hypnotizing clients into a super-conscious state of sufficient depth where it is possible to "see" into the spirit world. Newton's method of Spiritual Regression concerns itself solely with the world of spirit....with the travel of one's soul from the time of death to its next physical incarnation.

Dr. Newton writes in the Conclusions to Journey of Souls, "To those readers who find the material offered in this book too unprecedented to accept, I would hope for one thing. If you carry away nothing except the idea you have a permanent identity worth finding, I will have accomplished a great deal."