‘The practice of spirituality is the practice of remembering who we really are beyond our suffering, by allowing the universe to point us back to our most basic, truest selves. Spiritual practitioners are consenting to be guided into communication with the most honest expression of ourselves, the world around us, as well as ultimate reality. To be a spiritual person means to be always willing to be in communication with things as they are, not as we wish them to be.’ (Love and Rage)
I think this is as good a summation as any.