In dreams a harem is read as fantasy, attention and the wish to be desired — or as feeling one of many, competing for regard. Tradition treats it as a symbol, not a picture of any real culture.
Where in your waking life have you met something like this lately?
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.