This book is the continuation of the Second Part of the Modern Letters of the Masters of Wisdom. It continues to present the unknown, inner aspect of Christianity, as perceived by the Hierarchy of the Mystics of the Great White Brotherhood.

[Excerpt from the text on the back cover of the edition]

The reprints as well as the new volumes of the series "Modern Letters of the Masters of Wisdom" by Roger de Pins have been published by "Soul of the World" editions since 29/11/2009.