Three dots trailing off are read as an unfinished thought — words left unsaid or a story with no ending yet. Dream books take them as a pause before something is decided.
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.