Mortar and pestle grind by slow, patient force, and tradition reads them as working something through until it is fine. They also carry the old image of the apothecary and the healer.
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.