How does the figurative meaning of a word or phrase help a reader?

Figurative language can help enhance descriptions and help readers understand the underlying symbolism shown in a story/book or whatever. Like a metaphor is used to take a concept we already understand and use it to better understand the less known element .

a series of recent post by astronauts.

Explanation:

this would be the most reliable source because it is first hand information, instead of people who havent visited space or traveled space.