Though I really couldn't find a good definition, here is the word for today, Pandevotionalism. According to Daniel Clark (Ten Thousand Tongues, 1994) "Pandevotionalism...asks us to join Nature's worship of God. Humans are part of Nature, Nature is part of God, and the part worships the whole. The unavoidable implication: human life is best when we live within Nature's design and stop trying to improve on it."
Believe it if you can.