For some reason I feel more comfortable getting information from paper media.
A mediator who works with someone who doesn't have a body has to use some kind of mortal media to record what they're saying. Print media? Sure. Electronic media? Alright? Ghost media? No! Humans can't read that stuff!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.