Notice that it doesn’t say ‘on your minds’ because there is a difference. I think there is a difference between head knowledge and heart knowledge, and that distance between the head and the heart, about 12 inches, is a long distance to travel. It is information up here [in the head] but it is transformation down here [in the heart]. So, what the writer of Deuteronomy is saying is, this can’t just be in your head, it has to get into your heart.
-- Mark Batterson, from a talk entitled “Parenting 101”