"Transmission" is necessary to enter consciously into the practice of the Yoga of Radiant Presence. This means the discovery of the actuality of Radiant Presence as it is, with the self-verifying understanding that nothing else whatever exists; that all of Reality directly consists of That. (ALL experience is already the unconscious occurrence of this "process", but entering into it consciously is very greatly more efficient than the unconscious condition).
Transmission most commonly seems to occur in some degree of contact with a being who has Realized this actuality. This may be through explanations/teaching, or through more direct perception of the example of this actuality being embodied. It is unimportant how it seems to occur, only that it does, for entry into the conscious practice of this Yoga. Through listening to/watching the Audio & Video presentations of his talks, as well as reading his books, transmission is a possibility.