An experiential journey into shamanism as a spiritual path and the teachings of plants, animals, and Nature. The renowned herbalist Matthew Wood combines practical herbalism with the spiritual power of Nature, exploring plant teachers, animal medicines, and the fundamental principles of shamanism. Wood explains how his life's journey required him to learn a new language in which the relationships and patterns present in Nature are highlighted, in contrast to the linear human perspective. Paying tribute to the valuable indigenous culture in which his early thoughts were shaped, he maps an experiential journey toward the "Green Language," the "Language of the Shamans."

Based on direct and sometimes supernatural experiences as well as case studies from his practice, he examines the alphabet of Nature personified in animals and the spiritual lessons of animal medicines—animals personified in plants. He shares stories of Turtle Medicine plants for introspection, Bear Medicine plants to open the imagination, and Wolf Medicine plants for completion and magic. He explores Alligator Medicine plants for healthy well-being, Horse Medicine plants to bring the conscious self in harmony with the animal self, Frog Medicine plants to enhance instincts, and many more plant and animal teachings.

He also examines plants related to traveling in the spiritual world through the medicine of Crane, Dragon, and Bat. Through the shamanic adventures he shares, Wood offers profound comparisons between shamanism and the psychology of Freud and Jung, the visions of Carlos Castaneda, and the occult teachings of Rudolf Steiner and G. I. Gurdjieff. Revealing the shamanic roots of his botanical teachings, Matthew Wood provides not only an insider's view of his lifelong spiritual journey but also an intensive and experiential guide to the shamanic wisdom of countless plant and animal teachers.