In college I have met many atheists that also claim to be taoist, a form of eastern monism. I have studied Taosim and in a technical sense it is possible to be both a taoist and and atheist. In taoism there is no God. There is only the Tao. Still it seems as if the Tao is takeing the place of a God, emotionaly at least. It also seems to be on the same level, epistemicly speaking, as God. So it seems strange for me that one person would deny the existence of God and affirm the existence of the Tao.
Toaism states that everything in the world is believed to be a manifestation of the Tao and are restricted, in a sense, by the Tao. In the Tao de Ching, the main text of Taoists, the tao is described as being indescribable (doesn't that sound familiar to something other theists say about their God?). It is said by certian taoists that the Tao, I am paraphrasing here, is both smaller than the smallest thing and largests than the largest thing (a contradiction). The Tao is unity (whatever that means, I mean why not just call it unity then?). The Tao seems even more vague than any concept developed by western religions and just as hard to prove the existence of than any western God. Maybe I am to entrenched in western thinking for any of this eastern philosopohy.