It came from soaking up science & history, and the evidence of evolution, and questioning the books I read and listen to, and lots and lots of ruminating - that’s what my philosophy grew out of.
Oh yeah, there was that little thing about “a speck of dust that wanted to be more” that somehow liberated me from the shackles of the God Spell that get’s slipped around most people’s necks, and since that happened back in the earliest days of my journey, guess it really did matter.