Spirit Points
From NsdWiki
Every living creature possesses an inner well of energy represented by Spirit Points (or SP). Performing spirit arts drains this well. Meditating and resting replenishes it.
Characters begin the game with 10 SP. A practitioner of spirit arts can add his Self-Control score to his total SP. As the game progresses, a spirit artist can further increase his SP total by purchasing the Enlightened trump.
