Filling in a colouring book is read as calm, simple creativity inside lines someone else drew. Dream books link it to a need for rest — or to the question of whether you are staying inside the lines.
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.