What is the name of the soup of forgetfulness given in the underworld?

Meng Po soup is the forgetfulness drink given to souls in the Chinese underworld.

In Chinese mythology, Meng Po serves the soup in Diyu, the realm of the dead, before souls are reincarnated. Drinking it erases memories of previous lives and of punishments endured in the underworld, allowing the soul to begin a new existence without carrying its former identity and suffering forward.

The brew is also called the Five-Flavored Soup or Five-Flavored Tea of Forgetfulness in some tellings. Meng Po is associated with the Bridge of Oblivion, or Naihe Bridge, where souls prepare to leave the underworld. Their next rebirth is determined according to karma accumulated across previous lives.

Stories about children who remember past lives sometimes explain those memories by claiming that the soul escaped, refused, or failed to drink Meng Po’s potion. Some legends further identify Meng Po with Lady Meng Jiang, a grieving woman who created the drink to spare other spirits the pain of remembering their earthly lives.