How to explain A Poetic Dream with a Garden at Night?

When I was a child, my family was poor and I couldn't afford books, but I was eager to read. Every time I walk past the bookstore, I can't help drooling and turning pages. If it is too expensive to buy, I will think of it in my dream every night. I once wrote a poem: "The private school is too far away, and I am worried about passing by the book market. My family is too poor to buy the books in my dreams." After becoming an official, I bought thousands of books, but I didn't have time to read them.