An archivist keeps records safe in order. Dream books read the figure as memory, the past filed away, and the wish to keep or finally find something long stored.
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.