Complex sentence: Originally believed to be a form of energy, Rynaxes are, in fact, binary life forms ("i.e." existing in pairs) made up of pure energy that are channeled from an alternate dimension and not generated as Dr. Amami believed.
Split into simpler sentences: Originally believed to be a form of energy, Rynax are, in fact, binary life forms that exist in pairs. These beings are made up of pure energy that are channeled from an alternate dimension and not generated as Dr. Amami believed.