And the mere fact that the grass known as Dragon Tongue can be born from the essence of a dead self and possess such power reveals just how rare the Nether Dragon is, and how exceedingly difficult it is for mere mortals to obtain it.
There's also the legendary Meng Po Soup.
Meng Po Soup is the tea that all ghosts must consume before reincarnation, causing everyone, from mere mortals to the gods in heaven, to forget all of their past lives, signifying a fresh start. It is unknown exactly how Meng Po Soup is made.
Some believe it's concocted by Meng Po herself, but that may not be the case; it is simply named after her because she is the legendary steward of this soup.
Essentially, it should be a kind of spirit water naturally produced by heaven and earth, akin to the legendary Three Lights Divine Water.
Whoever holds the authority over Meng Po Soup would also gain a powerful position within the Netherworld.
