The term "Forest Spirit" often refers to a mythical being or deity associated with nature and forests. In various cultures, these spirits are believed to protect the woods, animals, and plants, ensuring the balance of the ecosystem. They are commonly depicted as guardians who embody the essence of the forest, often taking on animal forms or appearing as ethereal beings. In popular culture, the concept of a Forest Spirit is prominently featured in works like the animated film Princess Mononoke by Hayao Miyazaki. In this film, the Forest Spirit, also known as the Night-Walker, symbolizes the connection between nature and humanity, highlighting themes of environmentalism and the consequences of industrialization.