An epitaph sums up a life in a few words, and dream books read it as the question of how you wish to be remembered. It can also stand for a final judgement you are passing on some chapter of your past.
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.