Keep your eye on the ball

I constantly heard this or some variation of this for years when I was in little league. I learned today when the ball goes a little bit fast that it is impossible to keep your eye on the ball. Turns out that really good hitters anticipate what the pitcher is doing in a nutshell and practice. Basically they visualize where the ball will be and get there with the bat. 

I hate sports metaphors, but have always resonated with "keep your eye on the ball". 

Now I'm reevaluating what the metaphor means to me. I think knowing that "keeping your eye on the ball" is not possible makes the metaphor so much more powerful. I can't do it, but if I keep trying I can achieve what I'm trying despite that fact.