In Dead of Night (book), Meditation is one of the "Talents" available to the Hero of that adventure.
This takes time and may be carried out only in places of absolute calm. You can commune with your deities, drawing strength from the experience. If you are able to meditate properly, you receive divine guidance in the form of a vision or a message, and you may also gain strength from the experience in the form of restored STAMINA or LUCK. If your meditation is interrupted, the result could be disastrous for you.