The Duality of Time Theory is the result of more than two decades of ceaseless investigation and searching through ancient manuscripts of concealed philosophies and mystical traditions, comparing all that with the fundamental results of modern physics and cosmology, until all the contradicting puzzles were put together into this brilliant portrait. Without the overwhelming proofs and strong confirmations that accumulated over time, it would have been impossible to pursue this long research path, as it was extremely challenging to appreciate this unfathomable secret of time and ongoing perpetual creation.The complex-time geometry, which results from the Duality of Time Theory, explains how the physical dimensions of space are sequentially being re-created in the inner levels of time, which makes the outward time genuinely imaginary with respect to the inner time, and thus easily expressed in terms of simple Euclidean geometry by using the hyperbolic split-complex numbers. This will have deep implications because space-time has become naturally quantized in a way that explains and unites all the three principles of Relativity, leading to full Quantum Field Theory of Gravity as well as explaining the other fundamental interactions in terms of the new space-time geometry.This ultimate unification will solve most, if not all, of the fundamental problems of physics and cosmology. The homogeneity problem, for example, will instantly cease, since the Universe, no matter how large it could be, is re-created sequentially in the inner time, so all the states are updated and synchronized before they appear in the outer level of time. Furthermore, in addition to solving the major problems, the Duality of Time does not only unify all the fundamental interactions in terms of its genuinely-complex time-time geometry, but it unifies this whole physical world with the two other even more fundamental domains of the psychical and spiritual worlds. All these three conclusive and complementary realms are constructed on the same concept of space-time geometry that together form one single absolute and perfectly symmetrical space.Among many other astonishing consequences, this astounding conclusion means that the psychical world is composed of atoms and molecules that are identical with the physical world except that they are evolving in orthogonal time direction. It may appear initially impossible to believe how the spiritual worlds may have the same atomic structure as the physical world, but it is more appropriate to say that physical structures are eventually incorporeal, because they become various wave phenomena and energy interactions as soon as we dive into their microscopic level, as it is now confirmed by Quantum Field Theories.In the Duality of Time Theory, since rigid space is created sequentially in the inner time, energy may become negative, imaginary and even multidimensional, which simply means that all things in creation are various kinds of energy moments that are spreading on different intersecting dimensions of time; so not only mass and energy are equivalent, but also charge and all other physical and metaphysical entities are interconvertible types of energy, including consciousness and information.Finally, what is even more amazing is that this extraordinary unification between the various apparently incompatible physical and spiritual sciences is based on the same classical conceptions found in most ancient philosophies and contemporary religions, that describe different layers of creation beyond the physical world, such as the incorporeal creations of angels and jinn; all these creations and realms are now equally described in terms of the same complex-time geometry. This will open many doorways to whole new kinds of sciences and give the possibility of extending existing technologies onto the other domains, and vice versa.