Answer:
read below
Explanation:
Similie compares by using the words like or as.
The synagogue resembles a station in the way that it's usually bustling with people with luggage, with a place they need to be.
It's effective as the people are rounded up there, in a sea of confusion.
(Note: a synagogue is a Jewish place of worship, making it troublesome in the time period the book is based in).