Flickering Phantasm

Imagine encountering a ghost that flickers, its form unstable as though it’s caught in a glitch or stuck between two realms.

This prompt encourages exploration into a very visceral visual haunted experience. How would the inconsistency of the ghost’s form make you feel? Would it be more terrifying or less so knowing the ghost isn’t completely solid or stable? Think about the limitations or advantages for the ghost having such a fluctuating physical appearance.