This teaching by Lama Yeshe on the nature of the mind was offered during a weekend seminar on death, intermediate state and rebirth in Geneva, September 1983, and was published by LYWA as Chapter Three in Life, Death, and After Death available to read in many ways on the LYWA website.
Lama Yeshe Wisdom Archive
Bringing you the teachings of Lama Yeshe & Lama Zopa Rinpoche
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(The Nature of the Mind LDAD ch3)
Geneva 02 LYWA 044 LTY-LZR Geneva 1983