Pixie, //a mind in a coma can have little cognisance and works on "low level"...//
I don't think that's necessarily true. Similarly with victims of severe strokes. I don't believe we know enough about those conditions to reach that conclusion.
My point is, somebody calls to pick up your shopping list which is blank.
Your shopper will only know what to buy if information that originates in your mind is verbally conveyed, or written down.