Gravitational equilibrium is a state where the force of gravity pulling objects inward is balanced by the pressure pushing outward. This balance is crucial in celestial bodies like stars and planets, where the intense gravitational pull from their mass is counteracted by the energy produced from nuclear fusion or other processes. In stars, for example, gravitational equilibrium ensures stability throughout their life cycle. If the inward gravitational force exceeds the outward pressure, the star may collapse. Conversely, if the pressure is too strong, the star may expand. This delicate balance is essential for the formation and longevity of celestial objects.