The half-world between waking and sleep is read as a threshold where images and ideas drift up freely. Many traditions treat it as fertile ground for insight.
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.