Boxing taught me, in most cases the opponents eyes will get bigger when they are about to strike or kick...
But
you should be focusing on nothing and aware of everything.
It is like a window of where your personal space begins.
Is the window small?
Master, what do you mean a window?
Well grasshopper, with in 12 inches around you is your personal space. And your eyes only allows you to foward. Not in front of you, but grasshopper what is ahead of you, forward.
Master I think I understand but not really.
Grasshopper, if you focus on 1 thing you miss out on everything.
Keep your eyes open and be aware of everything
Therefore your window should be 3 feet by 3 feet.
Shoulders to the Waist
Thank you Master