The pharmacist behind the counter is the one who knows the right measure. Tradition reads the figure as practical help close at hand, and as the wish for someone to give you exactly what you need.
When this appeared in your dream, what were you feeling?
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.