what is cursed energy in jujutsu kaisen

Cursed energy is a power source in the Jujutsu Kaisen universe that is aligned with negative human emotions such as grief, anger, fear, guilt, envy, hatred, and gluttony. It is generated from negative emotions and can manifest as cursed spirits in trauma-filled areas. Cursed energy is present in almost everyone, but only a small percentage of the population has a high enough concentration of it to allow them to see cursed spirits. Jujutsu sorcerers are people with increased levels of cursed energy who can see curses and wield their own energy to fight back against them. Cursed energy is volatile and difficult to control, and jujutsu sorcerers use it as a form of fuel for their cursed techniques. Cursed techniques are unique powers or techniques that jujutsu sorcerers can create by manipulating their cursed energy. The ins and outs of cursed energy have not been fully explained yet, and several aspects of it remain a mystery.