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| Published | 1967 | First edition | No |
| Format | Hardcover (240x160mm) | Edition | |
| Publisher | Agni Yoga Society, Inc | Printing | |
| ISBN | Printed by | ||
| Country | USA | ||
| Series | No of pages | 558 | |
| Volume |
Notes
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.
Links
| Original title | |
| Original subtitle | |
| Original publication year | 1940 |
| Original publisher | Latvian Roerich Society |
| Original country | Russia |
| Original language | Russian |