A nursing home is read as ageing, care and the passing of responsibility between generations. It often reflects thoughts about an elderly relative or your own feelings about time.
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.