Some extant examples suggest that in antiquity Cupid and Psyche could have a religious or mystical meaning. Rings bearing their likeness, several of which come from Roman Britain, may have served an amuletic purpose. Engraved gems from Britain represent spiritual torment with the image of Cupid torching a butterfly. The two are also depicted in high relief in mass-produced Roman domestic plaster wares from 1st-2nd centuries AD found in excavations at Greco-Bactrian merchant settlements on the ancient Silk Road at Begram in Afghanistan (see gallery below). The allegorical pairing depicts perfection of human love in integrated embrace of body and soul ('psyche' Greek for butterfly symbol for transcendent immortal life after death). On sarcophagi, the couple often seem to represent an allegory of love overcoming death.