Meditation

"It's said that the fallen angel Erigora was able to immediately heal all his wounds by meditating." - Alice

Meditation is a skill which Luka learns indirectly from Alice, who originally intended to teach him to improve his focus and concentration in order to enhance his general fighting technique. It costs 3 SP to use, and recovers half of Luka’s maximum health.

This skill is one of Luka’s most useful skills (if not the most useful), allowing Luka to take care of monsters which would normally be impossible. In drawn out battles, it is often advisable to use this skill combined with regular attacks and spirit defenses as opposed to powerful skills.

Alice originally mentioned meditation as a joke, only for Luka to try it and successfully heal himself, much to Alice's surprise and bemusement. She had also assumed that the story was just a legend; obviously, she wasn’t expecting a human to be able to do anything close to something she thought to be a myth.

Luka’s ability to recover abnormally may be due to his angelic powers.

Trivia

 * When Luka calls out Tamamo when she heals, she points out that Luka not only abuses Meditation to heal himself, but he can also use it often while she has to wait for a long time between heals.