Wikipedia has a good article on Religious Naturalism. I mention this because that pretty much describes me. The basic definition states,
All forms of Religious Naturalism agree that the natural world must be placed at the center of our most significant experiences and understandings. [...] Religious Naturalists affirm the human need for meaning and value in our lives, drawing on two fundamental convictions in those quests: 1) the sense of nature’s richness, spectacular complexity and fecundity and 2) the recognition that nature is not only the realm in which we live out our lives, but that we and who we are – our physical bodies, our amazing brains with their capacity for human sensibilities and understanding, and even our predisposition to be religious – are actually part of nature.