Furthermore, the act of dedicating a Kin No Tamushi to a temple (or, as many Heian nobles did, burying it in a Jūyō — an underground relic chamber) was believed to literally "store" the voice of the Buddha in the earth until the coming of the future Buddha, Maitreya.
Kin No Tamushi Access
Furthermore, the act of dedicating a Kin No Tamushi to a temple (or, as many Heian nobles did, burying it in a Jūyō — an underground relic chamber) was believed to literally "store" the voice of the Buddha in the earth until the coming of the future Buddha, Maitreya.