At the Fairport Harbor on Lake Erie, this man talked about the light house and the light on shore. If you were out on the water in a storm or at night, you lined up the low light that was on the shore with the high light that was in the light house. This is the way you knew you were heading right into the harbor and wouldn’t crash. If for some reason the low light went out, you had no guidance into the harbor and could end up where you didn’t want to end up, as a captain of a ship.
It would be nice to have a light house and a low light when you sent out manuscripts or book dummies. You could see exactly where to send them so they would find a friendly shore. Here is the page from my sketch book. It is nice to sketch while someone is talking. You can get a feel for the whole person.