Gazing at the stars, falling in love, or listening to music, we sometimes feel a transcendent connection with a cosmic unity and things larger than ourselves. But these experiences are not easily understood by science. Is there space in our scientific worldview for these spiritual experiences? According to acclaimed physicist and novelist Alan Lightman, there may be. Drawing on intellectual history and conversations with contemporary scientists, philosophers, and psychologists, Lightman asks a series of thought-provoking questions that illuminate our strange place between the world of particles and forces and the world of complex human experience. Lightman weaves these investigations together to propose what he calls “spiritual materialism”—the belief that we can embrace spiritual experiences without letting go of our scientific worldview.