Rite of transferring the seat. The ceremony to transfer a kami to another 'seat' perhaps during rebuilding or repair of a shrine (see Sengu). It is usually a solemn ceremony carried out in darkness in a spirit of awe and mystery. Some larger shrines have a special building called o-kari-den to house the kami during repairs to the honden.
See Senko no gi.
A Popular Dictionary of Shinto. Brian Bocking.