Cursed Energy

Cursed Energy  (呪力 Juryoku?—lit. "Magical Power") is a power found within all human beings. This energy is utilized by Jujutsu Sorcerers for various abilities, and is responsible for giving birth to the entities known as Curses.

Description
Cursed energy is born from the negative emotions of human beings. Feelings such as fear, anger, and hatred can cause a buildup of energy within a human mind, until it is released and gives birth to a Curse.