Chi

Chi is the life force and energy of all living Fae and humans that Succubi and Incubi must feed on to survive and heal. Lilin, Yuki-onna, and Rusalka are also known to feed on sex chi. Since the Qarinah's feeding signature is similar to that of a Succubus, Qarinahs may feed on chi too.

A Succubus or Incubus is able to feed off chi and potentially kill them or resusitate them by breathing chi into them.

Bo is the only one who can feed off multiple Chi.

Description
Chi manifests as a blue light stream.

Trivia

 * In traditional Chinese culture, qi is an active principle forming part of any living thing. Qi is frequently translated as "natural energy", "life force", or "energy flow". References to concepts analogous to the qi taken to be the life-process or flow of energy that sustains living beings are found in many belief systems, especially in Asia.
 * "Life force" is the concept that a fundamental energy animates all living organisms. Many cultures and religions, past and present, believe in its existence:
 * Chi or Qi - Taoism
 * Prana - Hinduism
 * Lüng - Tibetan Buddhism
 * Mana - Polynesian
 * Ruah - Hebrew
 * Ka - Ancient Egyptian
 * Vitalism - Western