“As a young mathematician in the 1950s, Don Newman taught at the Massachusetts Institute of Technology alongside rising star and Nobel-laureate-to-be John Nash. Newman had been struggling to solve a particular math problem: “I was … trying to get somewhere with it, and I couldn’t and I couldn’t and I couldn’t,” he recalled.”
Later that night, Newman had a dream in which John Nash appeared to him and told him the solution. Newman submitted a paper to a mathematics journal based upon this solution which was published. By the way, John Nash was the mathematics genius upon which the film “A Brilliant Mind” was based.
This process of using dreams to answer questions is called Dream Incubation which is described in my book, Dreams: Guide to the Soul in chapter 34 which is at http://www.drstevenfox.com