In Thoughts Are Things Prentice Mulford explains we have, in effect, two minds: the mind of the body and the mind of the spirit. The mind of the body is limited and fights change. It thinks things must always be the way they've always been. The mind of the spirit trusts in the Supreme Power which made all things and knows that anything is possible if you believe.Prentice Mulford was a noted literary humorist and author. He helped found the New Thought movement.