Philosophical thinking has traditionally decreed that the human condition is split into two realms of being: nature and spirit - the one physical and psychological; the other an inherently transcendent dimension that exceeds the natural. Irving Singer finds this distinction unacceptable.

Preceded by The Creation of Value and The Pursuit of Love, this final book in Singer's Meaning in Life trilogy argues that separating nature and the life of spirit not only precludes an understanding of how consciousness, awareness of value, and the pursuit of ideal possibilities originate in nature but also masks the discovery of how experience can be both meaningful and a source of happiness.

Studying the interaction between nature and spirit, Singer examines the ways in which we may resolve our sense of being divided and thereby overcome the suffering in life. He speculates about concepts of happiness, play, acceptance of mere existence, and the need to live in unity with nature.