He was immensely interested in Buddhist texts ever since at the age of twelve while entering into the Western Sect of the Taoist practice (道家西派).

Under the guidance of Dudjom Rinpoche, Tam successively received transmitted instructions and is the lineage-holder of, among others, the following five principal Nyingma teachings: In 1984, Tam was ordered by Dudjom Rinpoche to spread the Dharma teachings in his designated mission regions, namely North America and Mainland China.

Applying the Nyingmapa insights, he defended the Tathagatagarbha thought which was under attack by various Han and Japanese Buddhist scholars who deem it as non-Buddhist.

Tam initiated the organization of the Sino-Tibetan Buddhist Studies Association in North America, which was joined by more than twenty international scholars in the discipline.

His other writings spread over I Ching, Chinese astrology, feng shui, fine arts, gastronomy and social critics.