Fantasy novels and immortal cultivation novels often depicted a magical world full of magic, myths, and adventures. However, these stories were often fictional and did not really exist. Although fantasy novels and cultivation novels were a form of literature, they were usually based on imagination and creativity. The characters and world settings in these stories were usually fictional and only existed in the author's imagination. Although the universe was an extremely huge existence, there was no evidence to prove that the concept of immortal cultivation existed in the universe. Immortal cultivation usually referred to the cultivation of martial arts and mantras in the universe to reach a realm that surpassed humans. But at present, we have no evidence that this realm or cultivation method exists in the universe. Although fantasy novels and cultivation novels were interesting forms of literature, they were not real worlds.