The Grand Unification Theory (GUT) is a theoretical framework in physics that aims to unify the three fundamental forces of the Standard Model: the electromagnetic force, the weak nuclear force, and the strong nuclear force. GUT suggests that at extremely high energy levels, these forces merge into a single force, simplifying our understanding of the universe's fundamental interactions. GUT is a step toward a more comprehensive theory, potentially leading to the unification of all four fundamental forces, including gravity. While GUT has not yet been experimentally confirmed, it provides a foundation for ongoing research in theoretical physics and cosmology.