Honzon, sometimes referred to as a Gohonzon, is the enshrined main image or principal deity in Japanese Buddhism. The buddha, bodhisattva, or mandala image is located in either a temple or a household butsudan. The image can be either a statue or a small scroll and varies from sect to sect. It can be a singular image or a group of images; the honzon in the main or treasure hall of the temple can be for that particular hall or the entire temple complex. Sometimes honzon is the central image of a cluster of three or five images. The physical creation of an icon is followed by a consecration ceremony. It is believed this transforms the honzon into a 'vessel' of the deity which in its own right has power.
Butsuzō
A honzon that takes the form of a statue is called a Butsuzō, most likely crafted out of cypress wood or metal such as copper or bronze. The Butsuzō is more common than other types of images. Tori Busshi was an early and renowned creator of worship statues. The Butsuzōzui, originally published in 1690, is a compendium of reproductions of 800 Butsuzō. tradition featuring Amida Buddha.
Honzon in Various Sects
Before the introduction of Buddhism to Japan in the sixth century there is no evidence of honzon in Shinto worship. Instead, its use was a cultural influence from Buddhism. Each sect of Japanese Buddhism has its own honzon which sometimes varies from temple to temple or even from hall to hall within a given temple. This is a practice that was criticized by Ekai Kawaguchi, a 20th century Japanese religious reformer. Some images are considered too sacred for public presentation.
In the Jōdo Shinshū school of Pure Land Buddhism, under the leadership of Honen and Shinran, the use of "honzon" became more prevalent. The honzon took the form of inscriptions of the sect's mantraNamu Amida Buddha, other phrases, images of the Buddha, statuary, and even representations of the founder. Rennyo thought a honzon in the form of a written mantra was more appropriate than that of statue.
Rissho Koseikai
In the Rissho Kosei Kai members receive and practice to a honzon enshrined in their homes they label a "Daigohonzon." The scroll consists of an image of Shakyamuni At the Rissho Kosei-kai headquarters there is a Gohonzon that is a statue of Shakyamuni.
According to Suzuki, the proper honzon for the Zen altar is Shakyamuni Buddha. He is often attended by other Bodhisattvas and arhats such as statues of Kwannon, Yakusi, Jizō, or Miroku. Sometimes there is a trio of Amida, Shakyamuni, and Miroku. There are other choices and combinations often influenced by the guiding philosophy of a temple.