Watching the Bridge

So. Does it help to watch the bow. To watch the bridge. To watch the Left hand fingers?

It's interesting to see how the bow trails across the string.
It's slightly controlling and obsessive to focus on the bow. It seems to detract from the obsorbtion of the music. I think it's just another technique to get beyond bowing difficulties.

Watching the left hand fingering also helps reform the hand when it's out of stretching unnecessarily.

Focusing on the string, in the same way I focus on my hands when I do yoga, takes the physical act and extends it to motion of the string. Watching the string vibrate is like watching the fingers move. They are part of the body.