What help Twain write so convincingly about the steamboat?

Twain had been a riverboat captain himself; so when he writes of.”reading the river” as it changes w/ the rains et cetera, he knew exactly what he was talking about.

Explanation:

you didnt put the link on, so i cant read the paraphrase

- "is not only a luminous passive watcher in the night sky, but it is a powerful force.

it does symbolizes love,   lust   and dreaming and is seen as a power symbolic force that determines and affects human behaviors and reactions.

in the context of the question it does remain you that he events are only taking place at night and the reader of the passage of time."