In Japanese, since according to Japanese myth the name of the place where the land of the underground spring existed was called "yomi" (lit. "night-see"), it has been proposed that the word "yomi" is actually a corruption of yume (dream).
日本語では日本神話の黄泉の国があったところの地名夜見から考えると、もともとヨミは夢（ユメ）のことをさしていたとも考えられるとの指摘もある。