Cosmoenergy, or Cosmopower, is the energy generated by the burning of one's Cosmo. Its visible part is called an "aura".
Cosmoenergy is mainly used by the Saints throughout the Saint Seiya franchise, other beings like the dead, deities also can use it.
The Cosmoenergy is extremely strong and powerful, but the user must be careful, because if large amounts of energy are used, it could cause tiredness, extreme exhaustion or even death.
- Cosmoenergy color varies according to the user. Colors like blue, red, orange, green, white, pink, or yellow are associated with positive elements as strength, justice, etc., while colors like purple, black, dark red (blood), etc., are associated with the negative elements as evil, cruelty, ambition or destruction.