人ひと穴あな

noun

volcanic cave traditionally said to be inhabited

Refers to a cave formed by volcanic activity that, according to local tradition, is believed to be inhabited by people or spirits. This is a specific cultural and geological term.

• 富ふ士じ山さんの麓ふもとには人ひと穴あなと呼よばれる洞どう窟くつがいくつかある。

  At the foot of Mount Fuji, there are several caves called hitoana.

• この人ひと穴あなは昔むかし、修しゅ験げん者じゃの修しゅ行ぎょうの場ばだったと伝つたえられている。

  This volcanic cave is said to have been a training site for ascetics long ago.