This is balanced by the fact that spirits cannot regain fatigue normally. This is a 0-point feature of all spirits. Perception Spirits can see, smell and hear normally. Their sense of touch is very limited unless they use their poltergeist ability. They can even taste objects to a limited degree, especially objects that have been offered to them in a ritual.
Many spirits enjoy the smell and taste of ritually offered food and drink.
Spirits also have the ability to hear their names whenever they are ritually invoked, regardless of distance or intervening barriers. Due to the fact that they are not living and therefore not bound by physical restrictions, spirits may travel very quickly. In non-combat situations, their move is equal to three times their calculated move score. Spirits must always keep a connection to the earth. They may travel underground, but cannot see when doing so.