The connection between 'the moon and the water that brings back youth' is also mentioned in the ethnic lore of Okinawa that has been included in "Tsuki to Fushi" (moon and immortality) (The Toyo Bunko [Oriental Library]) authored by Nikolai Aleksandrovich Nevskii, a Russian scholar of Asian Studies.
「月と若返りの水」の結びつきは、ロシアの東洋学者ニコライ・アレクサンドロヴィッチ・ネフスキーが著した『月と不死』（東洋文庫）に採集された、沖縄の民族伝承にも語られている。