In Celtic mythology, the green man symbolizes nature, fertility, and the interconnectedness of life. Often depicted as a face surrounded by foliage, this figure represents the vibrant energies of the natural world and the cycles of growth and decay. The green man is associated with renewal and rebirth, emphasizing the importance of nature in cultural and spiritual practices. His presence in folklore underscores the significance of being in harmony with the environment and the vital role it plays in human existence.