This book traces the author's path of inquiry and discovery in the realm of color, delving into the relationship of art, science, and religion. She explores theories of color and the interactions of light, darkness, and color. Her explorations lead to a deepening understanding of the activity in the human soul and how color can be used therapeutically. Schroff speaks to every human being and adds guiding thoughts for artists. The book includes five of her watercolor paintings, numerous illustrations, and five appendices, covering Goethe's prism exercises, the evolution of color perception, green and magenta as spirit and soul, visible elements and invisible ethers, color intervals and tips for artists. An extensive bibliography encourages further research.