This introduction to Buddhist psychology supplies essential instructions for successful meditation practice. It sets forth the nature of mind and human potential and presents meditation practices that can powerfully influence and ultimately transform the mind into the purified mind of a buddha. Khenchen Thrangu Rinpoche clearly describes how consciousnesses operate in everyday perception and how at the time of Buddhahood, these same consciousnesses express the five primordial wisdoms of the five Buddha families. Buddhism. Meditation & Relaxation. Psychology.