Tree rings record each year of growth, so they are read as time, memory and the experiences that shaped you. Dream books see them as a quiet look back at how far you have come.
Does the traditional reading fit your dream, or did it mean something else to you?
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.