put your mind to something
put one's mind to something
set your mind to something
turn your mind to something

I couldn't seem to turn my mind to anything more important.

But something has happened to turn my mind another way quite.

He turned his mind back to the problem at hand.

He put the problem away and turned his mind to the girl.

She turned her mind back to the times of special pain.

Once this had been decided, he turned his mind to the other thing.

How long does it take to turn someone's mind inside out?

It was time to turn his mind to her daughter.

If it is the will of God, he thought, and turned his mind to other things.

Sitting on the edge of the bed after he left, I turned my mind again to the situation.