Dream books see the entrance hall as first impressions and the boundary between public and private. Lingering there is read as hesitation about letting someone further into your life.
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.