Ask this question when you want to know exactly what someone is proposing.
For example, you want to have a fun birthday party?
Music and dancing? A trip to a resort? Or just a casual dinner withsome friends?
You got plans? What do you have in mind?
Ask this question if you think that there's something that's bothering or worrying someone.
You can tell from from the expression on their face that they’re concerned about something.
If you have a lot on your mind lately, it means you have a lot of problems to deal with right now.
Are you even listening to what I'm saying to you?
Sorry. I've got a lot on my mind.