What is the history of Taoism and tea?

Taoism and tea are connected in legend. It is said that a man named Kwanyin presented to his master Lao Tzu (founder of Taoism) tea in the first known tea ceremony. It is unfortunate that Taoism and Zennism, which are so intimately linked to Teaism, have had no very good translations for Westerners to digest properly.