Okay! New Metaphor. Good for Domini Canes and other Dawgs.
To teach a dog to heel, you hold the leash just so with a bight in it. You draw the dog to you and you walk briskly, and suddenly change direction, letting the bight go. The dawg walks out the extra 18" of leash and then gets a yank!
After a while, the dawg keeps his eye on you. Then, after another while no leash is needed.
Or so I hear. Right now, I'm one of those dawgs standing on his hind legs, straining against the leash, hardly able to breathe but DARN that rabbit needs chasing ....
Lord, teach me to keep my eye on you alone.
Okay, maybe Herbert and Donne are better at it than I am.
Hmmmm . . . you must know my dawgs. Straining at the chain collar, bounding up and down . . .