Gravitational pull is the force that attracts two bodies toward each other, a fundamental concept in physics. It is responsible for keeping planets in orbit around stars, moons around planets, and even galaxies together. The strength of this force depends on the masses of the objects and the distance between them. For example, the Earth exerts a gravitational pull on everything around it, which is why we stay grounded. This force is crucial for life as it influences tides, atmospheric conditions, and even the structure of the universe itself.