This short ebook describes the relationship between three universes – the universe of physical matter, the universe of antimatter, and the dream universe. These universes are highly interconnected. In our terms, the universe of physical matter consists of dimensions x, y, z, and mass (the fourth dimension), with the opposites of these composing the universe of antimatter. The dream universe consists of only three dimensions: x, y, and z. All particles there have zero mass, in our terms. However, the dream universe represents constructions that have lower energy levels and are incipient, in our terms – hints of possible future constructions in our physical universe.