The imaginative faculty functions in two forms. One is known as “synthetic imagination,” and the other as “creative imagination.”
Here the aurthur is talking about two forms of Imagination and the ability to think without holding back. Like allow your thinking
to go orderly wild. And when imagination is put into action we get something tangeable. I liken the synthetic imagination as we are all simply a product of our environment. Let's say that one is born to parents who did not finish/graduate from high school and they were always able to provide for their family because they believed in working hard. Now that child will have some difficulty with breaking through, their environment, to the entrepreneurial kind of thinking because of what he/she have been taught to do. This is not to say that this person cannot escape their synthetic imagination and move into the creative imagination, it just means it may take more time and exposure to new ways of thinking.
The second form of imagination is creative imagination. Many times the author uses the word create. The word create can be used inter-changeably with inventions. I give pause to the use of the word create because in my mind create means to make something from nothing and my God is the only one that I know that have made something from nothing. I once heard a sermon about Creation vs Discoveries. The jest of the sermon was that because God has already created everything, man can only make discoveries! So in terms of the physical "synthetic imagination" where we use things (already created, made by God) from our environment, modify it and give it a new name. Example: A long time ago man/woman would pick a rock and by hand used it to bang on or break other things. Then one day a person found a rock with a hole in it. They put a stick in the hole and now they can bang or break things without hurting their hands. And the hammer was born. :) Of coarse, since that time the hammer has been reshaped and refined. I think that's a discovery of synthetic imagination to its completion. One can say discoveries of the mind are more of the creative imagination as in the method whereby unique concepts are generated, particularly whenever this doesn't appear to be accountable just by the blending of present concepts. So I can see how Hill, in an entrepreneurial fashion, is also saying that if we can think it and plan it then we will have it. I'd like to leave you with this thought: "Creative imagination and critical thinking often goes hand-in-hand" with the mutable ways fortunes are made!
I give thanks to Michael & Linda Dlouhy for their "creative imagination" of Mentoring for Free and to all the mentees.