This is an excellent introduction to, and call for, spirituality. Our consumer society and reductionist philosophy have left us with a materialist rationalist physical world with no account of our metaphysical being, whether intellectual, emotional, or spiritual.
Philip Sheldrake presents overviews of religious and secular spirituality, offering a useful typology of ascetic, mystical, activist and prophetic spirituality. We are more spiritually aware in childhood, than we are later in life (p61). Spirituality is holistic, transformative, meaningful, coherent, heuristic, creative, individual and communal. It examines self, develops self, but transcends self. It invokes the sacred. It is a discipline. It gives us identity. Its hallmark is virtue.