A monk may calm himself and enter a meditative state. This state of relaxation grants various benefits including faster healing, faster spell point recovery, and a brief period of improved power and skill. This improvement may be used to boost combat ability or to complete a difficult task that permits hours of preparation. Further levels in meditation improve the duration and magnitude of these benefits.
Meditation is a minor ability learned primarily by monks, but it is not uncommon in backstories or cross-class.
Would this be one of the core abilities for your character? Better for staying unnoticed than backstab and without the pesky morality of murder. How would you use it? Let us know in the comments below.