keep mind on
keep (one's) mind on (something)
To continue thinking about or remain focused or concentrated on something. I tried to keep my mind on my work, but I couldn't stop thinking about what Sarah said to me last night. The boss told us to keep our minds on the company's goal after he asked us to start working Saturdays.
keep one's mind on someone or something
to concentrate on someone or something. He is keeping his mind on Jane instead of his work. I find it hard to keep my mind on my reading.