For me, spirituality includes the belief in things larger than ourselves, an appreciation of nature and beauty, a sensitivity to the world, a feeling of shared connection with other living things, a desire to help people less fortunate than ourselves. All of these things can occur with or without God. I do not believe in the existence of God, but I consider myself a spiritual person in the manner I have just described. I call myself a spiritual atheist. I would imagine that many people are spiritual atheists.
The most spiritual human beings, assuming they are the most courageous, also experience by far the most painful tragedies: but it is precisely for this reason that they honor life, because it brings against them its most formidable weapons.