Line from  "The Black Cat" best represents Poe's use of foreshadowing is But tomorrow I die, and to-day I would unburden my soul.
Foreshadowing is the literary technique used by authors to drop hints about impending events or incidents.
This helps to increase readers' curiosity and give them a sense of unpredictability about what will happen next.
The context of the story  "The Black Cat" is based on a man who experiences a dramatic shift in character tells a disturbing narrative of animal torture and murder in the first person.
This strategy is evident in the given excerpt, where the statement "But...soul" hints to a death that would take place later on in the story.
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