And your whole mind concentrated on what happens to be concerning them.

"I do not think you have your mind concentrated on important things."

Her - its - mind is concentrating on other factors.

The mind of a typical audience member can only concentrate on one thing at a time.

I had to keep my mind concentrated on this project.

But my mind was focused on the phone and wouldn't concentrate on the work at hand.

I'll help in the strategy, but I'd better keep my mind concentrated on the problem here.

Now his mind concentrated totally, for here was a vast idea.

The linked minds concentrated upon the problem for a period of time that might have been either days or weeks.

His eyes wouldn't focus on the word, his mind couldn't concentrate.