I am fascinated by this subject and plan to return to it as soon as I get through a lot of Shen-related stuff. What is interesting is that in one of
my Taoist books there is a map of creation according to Taoism that looks very much like the Tree of Life. Years ago I attended a lecture
by a Hindu and there reproduced was the Tree of Life with Hindu God names.
One interesting feature about Taoism is that the map of creation is originally binary; yin and yang, which split to 4 (greater yang, lesser yang,
greater yin, lesser yin) and then into the 8 trigrams which form the basis of the 64 Hexagrams of the I Ching. In the Wiccan tradition you'll find
the binary pattern repeated, male and female, Horned God and consort, and then the four elements and finally the 8 feasts being the cycle of the year.
The 5 elements in Chinese medicine came much later.
When you start to examine the patterns you'll find there is a deep harmony based on the binary number system running through much esoteric
literature.
Mark