Lecture «The Harmony of Life» was delivered by the Messenger Mark L. Prophet on December 31, 1971, during the “The Class of the Solar Light” at La Tourelle, Retreat of the Resurrection Spiral, Colorado Springs, Colorado. It was initially published as the 3rd lecture on 2-audiotape album “Discourses on Cosmic Law #11” and recently on the MP3 CD Album “Discourses on Cosmic Law #3”.