Stamps are important in Japan. Instead of signatures, people and institutions use name stamps (hanko or inkan) to sign contracts and other legal documents. All railway stations and all sites of touristic interest have a stamp which can be collected in albums to document the visit. Many shops issue stamp cards which result in discounts for frequent buyers. And yesterday I engaged in the ultimate stamp rally.
Both Shinto shrines and Buddhist temples issue stamps (goshuin) to visitors, as a proof of having worshipped there. They have been doing this for hundreds of years. The stamps are collected in special albums, and there are also official pilgrimages in which the stamps of the participating shrines are put on scrolls.



