The scenario in which a character tries to cover up or hide a wrongdoing, only to constantly be haunted by feelings of guilt, most clearly symbolizes guilt. This internal struggle and inability to escape the consequences of one's actions reflects the burden that guilt can place on an individual's conscience.
A cougar is an animal that can represent guilt. A mountain lion may also be used to represent freedom of guilt.
me
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lion
Lions
A dove.
The Vulture
The bird.
The ox.
The fish.
the lion