This book is wholly written by the Star Circle in full form materializations through the mediumship of William W. Aber. This work is intended by them to be the promulgator of men's better instincts and nobler deeds. In this, the fourth book, they have set forth principles that will unravel mysteries of human existence as a whole. It is the setting up of a scientific explanation of what life really means and the elements of progress in the spirit world, giving to the world a realization of the highest and purest planes of life attainable in the future existence.