It is made up of a twig of "sakaki" (Cleyera japonica, an evergreen shrub in Japan) or "nagi" (Podocarpus nagi, an evergreen tall tree in Japan), "sime" (sacred rice-straw ropes), and the sacred mirror as "goshintai" (also called "yorishiro," the object of worship housed in a Shinto shrine and believed to contain the spirit of a deity, and here, the deity is "Kasuga Myojin" [the deity of Kasuga-taisha Shrine]).
榊（もしくは梛）の枝に春日明神の御神体（依代）である神鏡を付け、注連をかけて神木としている。