Channeling
You can become a conduit for the spirit world, allowing spirits to speak through you. To do so, you must enter a trance, achieved through one minute of concentration and a Will roll (at +2 if you have Autotrance). You are unaware of the world around you while you are in this state.
Once you have entered your trance, any spirit in the immediate vicinity can enter your body and use it to speak or write messages. The GM controls what the spirit does or says. The spirit answers questions put to it by others, but it is not bound to tell the truth.
This is a minor form of possession: the spirit can use your body only to communicate. However, if it has the Possession ability, it is considered to be touching you, and can attempt full possession while you are in a trance. You are considered "wary," and thus get +5 to resist.