In the inner sanctuary of Mt. Koya, there is a light called 'Kishinto' or also known as 'Poor woman's lamp' that is said to be offered to Buddha by Joyo and has never been gone out to date.
高野山奥の院にある「祈親燈（貧女の一燈）」は、定誉が献げたものといわれ、現在まで消えずに燃え続けている。