The monastery of Dionysiou, as well as its cathedral, is dedicated to St John the Baptist, whose birthday is traditionally celebrated on 24 June. The visitor 'feels' the patron Saint's presence through frescoes, icons, and depictions on various objects, such as the wood-carved throne of the bishop, dedicatory inscriptions such as 'Baptist, receive a gift', and especially through the Monastery's collection of precious relics, the most important among them being the preserved right hand of the Saint.