The purpose of this book is to present several simple yet fundamental principles I have learned over the last fifty years of working to improve my own mental health and well-being. The book is divided into two parts: teaching and sources. The first partteachingwill be short, and its style lean, primarily to facilitate easy reading and absorption of the material. The second partsourceswill be more academic in style yet still relatively lean, intended for those interested in the source material for the teaching portion of the book. The first part of the book may be read by itself without reading the second part for anyone primarily interested in a very short, very direct account of the principles of the teaching.