Energy is defined as the capacity to do work, encompassing both kinetic and potential forms. It is fundamentally linked to force and distance, illustrating its practical application in real-world scenarios, such as pushing a car up a hill. While some view energy primarily as a mathematical concept, its usefulness in understanding physical phenomena is widely acknowledged. The discussion emphasizes that energy is a fundamental component of everything in existence. Overall, energy plays a crucial role in both theoretical and practical contexts.