This article analyzes the concept of Complete Emptiness from new surprising angles and presents the surprising conclusion that it might be that there is no such thing as Complete Emptiness. The study starts by trying to answer the following question: is it possible to detect the energy embedded in a Null electromagnetic traveling wave, which is an electromagnetic traveling wave that does not contain any electric or magnetic fields at all. The article describes how to create such a Null electromagnetic traveling wave from two normal electromagnetic traveling waves, which do contain electric and magnetic fields, which collide and following their collision consolidate and unify and continue to travel together in the same direction. In three different proposed experiments of producing a Null, or a partly Null electromagnetic traveling waves, examined in the study, energy loss in the process was observed, which seems as a violation of the energy conservation principle. The main part of this study is the development of the "Energy Pair Theory" (EPT) that explained the above energy loss by the central idea of this theory that certain energies can be accumulated and stored as "Energy Pairs" that exist but disable each other, and therefore, the energy that is accumulated in the pairs exists but is undetectable or untraceable. Further, the article examines the well-known Dark Energy untraceable energy in the EPT framework, and concludes that this energy might be a space in the universe where Energy Pairs reside. Finally, the article examines the well-known observations of electron positron collision (known also as electron positron annihilation) to produce a Gamma Photon, and the reversed process of a Gamma Photon producing electron and positron (known also as pair production), in the EPT framework, and comes to the unexpected conclusion that electric charge is a form of energy, or in other words the entities of charge and energy are actually equated, as mass is recognized of being energy. This implies that the only distinct entity in Nature is Energy. This surprising and revolutionary conclusion has many future implications in both scientific research and technology. The article also uses the EPT framework to explain other energy conservation issues, and derives the surprising conclusion that the Space itself might be Energy, because Energy Pairs might be equated with the location in Space where they reside. This seems to bring back the old concept of Aether. However, this new version of Aether is supported by requirements from the General Relativity Theory, which do require an Aether like medium. To summarize, the surprising conclusion of this article is that it might be that there is no such thing as Complete Emptiness, that Complete Emptiness is actually locations in Space that contain untraceable Energy Pairs which might also be the untraceable Dark Energy, and that the Space itself is composed of Energy Pairs, and thus, might be a form of Energy.