A busy marketplace is read as exchange, choice and the give and take of social life. What you buy or sell there is taken as what you value or are willing to trade.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.