Sentence 5

"Imagination, of course, can open any door -  turn the key and let terror walk right in."

Capote, Truman. In Cold Blood: A True Account of a Multiple Murder and its Consequences. New York: Vintage Books, 1994. Print.

Commentary:
This sentence contains primarily abstract diction with figurative language. For example, personification is found when imagination is given the ability to "open any door" and when terror is permitted to "walk right in." When speaking of imagination opening doors, Capote means to say that the mind is able to create endless, infinite opportunities and scenarios for one to wander.  One of these "doors," when opened, has the ability to emotion in, one being terror. The sentence contains some informal or casual language as well with the phrases "of course" and "walk right in."

(Source)