Digging like an archaeologist is read as uncovering old layers of your own story. Dream books connect it with memories, family roots and things buried long ago coming back to light.
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.