in one's mind or on one's mind

  • Brioche

    Senior Member
    Australia English
    something that is "on your mind" is something that is causing you concern, or that you think about a lot.

    "Georgia, Georgia, no peace I find
    Just an old sweet song keeps Georgia on my mind."


    something that is "in your mind" is something that you are imagining.

    "In my mind I'm going to Carolina"
     
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