A prayer book holds words ready for moments when your own fail. It is read as needing a script for feelings too large to phrase, and as comfort drawn from tradition.
When this appeared in your dream, what were you feeling?
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.