Board Thread:Questions and Answers/@comment-74.243.41.26-20130830022405/@comment-26228073-20130830024441

because it does. You can't expect to be able to battle anytime with full spirit. Then it would be to easy to get sealstones

I think you misunderstood what the whole thing means though. When you add on ability points to your Health/Attkspirit/Defspirit, it only increases the max amount. Of course, the Health/Attk/Def spirit all regenerate. One minute per Health and Attack spirit, and 30 seconds for Defense spirit.