You and I are star dust.
All the spirituality within this world manifests itself through what we see around us. The feeling of connectedness to one's surroundings on a deep intellectual level, is the core of religiosity. Nature is God and God is nature. That is not to say that we should deny our benevolent systems of beliefs, for they bring power, hope, happiness, joy and morality, and provide us with such an unexplainable experience, an eternal desire to feel spiritually connected to this world and this universe.
Deus sive Natura, says Spinoza.