The Secret of the Golden Flower is a classic Taoist text on meditation and spiritual cultivation, offering guidance on achieving inner transformation and enlightenment through the practice of focusing and refining inner energy. The text presents a series of instructions on breath control, visualization, and mindfulness aimed at achieving spiritual immortality. In his foreword, Carl Jung provides a psychological interpretation, connecting the text's teachings to his theories on the unconscious and individuation. Jung highlights the parallels between Eastern mysticism and Western psychology, framing the work as a bridge between ancient wisdom and modern understandings of inner growth and self-realization.