Drilling is read as getting to the core of an issue, or as pressure that repeats. Tradition links it to digging deep for answers, and sometimes to persistence wearing thin.
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.