It has been proven in studies that the speed of light remains absolutely constant within a local area, but relative changes in the speed of light can occur between different local areas. The speed of light that changes with space is the physical factor responsible for the generation of gravitational acceleration g ( g=−(��������^2)/�������� ). Within a range of 10 m, it is possible to generate a gravitational acceleration g = 10 m/s² with only a relative change in the speed of light at △ C=-0.000000166782 (m/s), which is a remarkable feat. The change in the speed of light can be attributed to the influence of the mass of an object on the physical properties of vacuum μ0ε0, which changes it with space. Although it is a minor change to the object in space, it results in the establishment of high and low energy states, and consequently, the object will spontaneously move towards the low energy state. In such a space, an object is equivalent to being subjected to the action of gravity ��������, and ��������=−����0��������2��������. In this article, the physical mechanism of the conduction of gravity in space and the physical mechanism of space-time curvature are explained.