Taking dictation is read as writing down someone else’s words instead of your own. Dream books see it as following instructions closely, perhaps at the cost of your own voice.
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.