The Ballad of Narayama (1958) concerns the Japanese legendary practice of ubasute, or, abandoning the elderly in the mountains to die. Different characters obediently accept the practice or violently reject it. Image Source: QBranch.
In story-telling, there are several famous characters who try to freeze time before a watershed moment changes everything. They are traumatized by the moment of change and their rigid attachment to the past is almost always self-destructive. Perhaps this is a way of defining a ghost, someone who acts against the course of the world's destiny and becomes trapped in one frame of time, rather than moving along through many frames of time.
The need to accept change in order to live in a healthy manner is the larger reason for the ancient injunction:
Don't look back. This is the message in myth and religion, as with
Orpheus and Eurydice or
Lot's wife. Fables, ghost stories and superstitions are full of warnings against mirrors that can capture a hostile past, reflect it back at you, and trap you forever.
Sodom's destruction. Lot and his daughters escape, while his wife turns to a pillar of salt. 12th century mosaic, Duomo di Monreale, Sicily. Image Source: Wiki.
Lot leaving Sodom, with his wife looking back. Woodcut from the Nuremberg Chronicle (1493) by Michel Wolgemut and Wilhelm Pleydenwurf.