Answer: The most valuable human possessions are individuality and independence.
Explanation: Imagery is a literary device that consists of the use of figurative language or distinctive descriptions to evoke the senses of the reader and to create a mental picture. In the given excerpt from "Anthem" with the aid of Ayn Rand, we can see the use of the phrases "treasure" and "fortune" as a metaphor, comparing them with values like freedom and will, which gives the concept that the most valuable human possessions are individuality and independence.
