The purpose of this paper is to present a hypothesis that redefines gravity. The currentdefinition for gravity is: The natural force of attraction between any two massive bodies,which is directly proportional to the product of their masses and inversely proportional tothe square of the distance between them.The current definition explains the force of attraction between two massive bodies.Einstein’s well-known equation, E = mc2, relates mass and energy. So, this paperexpands upon that premise and proposes that gravity is not the force of attractionbetween two massive bodies but is rather the force of attraction between two energybodies.Gravity — the natural force of attraction between any two energy bodies, which is directlyproportional to the product of their energies and inversely proportional to the square ofthe distance between them.This proposed definition of gravity predicts the bending of light by a massive body. Andmay also be used to improve our understanding of how galaxies rotate. If supported byexperimentation, we may then be able to combine gravity into a Grand Unified Theory.