It has no sacred books. It does not teach or preach any doctrine or set of doctrines. It is not negative or nihilistic. Zen is a faith of creative experience. It attempts to liberate the mind from the slavery of words and the constriction of logic.
Intuition is stressed.
And its method of banishing doubt is to push doubt to its extreme. Zen is not competitive, and does not proselytize. Men of all faiths can attempt to explore it without giving up their own religious beliefs. And through Zen they may explore themselves and, perhaps, find a more intuitive experience in their own beliefs. Links for Zen and Meditation related sites can be found on the Buddha Page .