|Publisher||Agni Yoga Society, Inc||Printing|
|Series||No of pages||558|
In her letters Helena Roerich, a 4.0 degree initiate, elaborates on the Agni Yoga teachings and the Theosophical teachings, clarifying and expounding many details. She also comments on books she is sent by students.
|Original publication year||1940|
|Original publisher||Latvian Roerich Society|