Get ready, I have a crap load of caffeine in me and am ready to spew some passion.
Religion is the final frontier for philosophy. It usually governs the end of life, the meaning of life, the morals and ethics that we should adopt. Spirituality, in my opinion, is also religion, but of course, of a different nature. These are massive paradigms - the decide how we view our entire life, how we accept and tolerate things, what we strive to be. It literally shapes us, and we cannot escape experiencing some kind of religion in our daily lives. Churches adorn streets, necklaces and clothing reflect beliefs, even some conversations are steered (or avoided) by religion.
Then, there is the absence of religion - the Atheist. Atheist is a growing (actually the fastest growing) philosophical belief. I really want to examine this in full, as I once believed myself to be an Atheist. These are my ideas, they are my opinions, and they are (most likely) unique to me. I've warned you.