[1] It is one of a group of three built near the site in Matsubagayatsu (Valley of Pine Needles (松葉ヶ谷)[2] where Nichiren, founder of the Buddhist sect that bears his name, is supposed to have had his hut.

Founder Nichiren wasn't a native: he was born in Awa Province, in today's Chiba Prefecture, but it had been only natural for a preacher like him to come to Kamakura because at the time the city was the cultural and political center of the country.

[4] It appears that Ankokuron-ji did not participate in the trial because the government's official position was that Nichiren had first his hut there when he first arrived in Kamakura, but that he later made another near Myōhō–ji after he came back from his exile in Izu in 1263.

[4] Following the mountain path beyond the cave one reaches first, on a ridge above the entrance, the temple's bronze Bell of Peace, then the spot where Nichiren used to go every day to see Mount Fuji, the Fujimidai.

[4] Going down the stone stairs the visitor returns to the entrance, where stands the Kumaō Daizenjin Sonden (熊王大善神尊殿) (an Inari shrine enshrining a samurai who served Nichiren).