This book explores broad anthropological foundations of spirituality including science, psychology, philosophy, and theology. Human spirituality is an essential topic in present-day humanistic and even scientific debates. Reflection on spirituality leads us to the conclusion that we are formed both as a vessel to receive the grace and presence of God, as well as to be the bearers of God''s image, which is expressed most fully in acts of self-transcendence. In such an approach, the human being emerges as homo theomorphicus et theophoricus. This approach to our nature, finds an equivalent perspective in our spirituality, resulting in a discovery of its receptive-responsive nature. We associate spiritual receptivity with "God-shape-ness," our state of being formed in the image or likeness of God, that is, theomorphism; our responsiveness engenders "God-bearing-ness," that is, theophorism. This book is fruit of the extended and intensive research by the author who happens to be a believer. Hence, the last part of is theological but in its earlier parts it remains faithful to the scientific methodology, venturing through neuroscience, psychology and philosophy.