Otherworldlinesses refers to the state of being mysterious, spiritual, or beyond the physical world. There are various synonyms for this word, and they include ethereality, spiritualism, supernaturalism, mysticism, transcendence, and esotericism. Ethereality implies a delicate and heavenly quality beyond the physical world. Spiritualism is a belief in the existence of spirits and the ability to communicate with them. Supernaturalism refers to the belief in gods, ghosts, or other supernatural beings. Mysticism is an experience of oneness with the ultimate reality beyond the physical world. Transcendence refers to a state of being beyond the physical world. Finally, esotericism denotes knowledge and beliefs that are difficult to understand and only meant for the initiated.