
The white portion of the lower-right HUD meter is your current Vitality. Combat Mystic Skills consume it, and it slowly refills while you fight. Mystic Skills used outside combat do not spend Vitality, although their cooldown still runs. For a larger maximum, collect Oddities, submit them to the matching Oddity vendor, and unlock Vitality nodes in Melodies of Peace.
HUD location
White meter in the lower-right combat display
Recovery
Refills slowly during combat
Permanent increase
Oddities into Melodies of Peace nodes
Older Chinese and translated guides call this resource 精元, Jingyuan, or Essence. In the current Global UI, use Vitality. Do not confuse it with Energy for activity claims, Stamina for crafting, Spirit Essence generated by combat actions, or Prismatic Essence used elsewhere in progression.