In Greek mythology, the mountain nymph Echo was eternally cursed so that she could only repeat words spoken to her by others. Echo then fell in love with the beautiful young man Narcissus, but since it was so hard for them to communicate, her love was destined for tragedy. Narcissus ended up falling for his own mirror image instead. This is why the auditive phenomenon of the echo and the visual phenomenon of the mirror image are tragically linked in Greek mythology.