(Borrowed text from
The World Pantheist Movement):
When you look at the night sky or at the images of the Space Telescopes, are you filled with feelings of awe and wonder at the overwhelming beauty and power of the universe?
When you are in the midst of nature, in a forest, by the sea, on a mountain peak - do you ever feel a sense of the sacred, like the feeling of being in a vast cathedral?
Do you believe that humans should be a part of Nature, rather than set above it?
If you can answer yes to all of these questions, then you have pantheistic leanings.
Are you sceptical about a "God" other than Nature and the wider Universe?
Yet do you feel an emotional need for a recognition of something greater than your own self or than the human race?
If you answer yes to these additional questions then pantheism is very probably your natural religious home.
At the heart of pantheism is reverence of the universe as the ultimate focus of reverence, and for the natural earth as sacred.
Scientific or Natural Pantheism - Pan for short - has a naturalistic approach which simply accepts and reveres the universe and nature just as they are, and promotes an ethic of respect for human and animal rights and for lifestyles that sustain rather than destroy the environment.
For more detailed information please visit:

or
Stanford Encyclopedia of Philosophy