Because light has wave-particle duality, its movement form is represented by the dual motion characteristics of photons and light waves, that is, photons propagate along the straight line of the light wave, and the light waves correspond to the corresponding photon fluctuations. The macroscopic performance of photons and light waves is light energy, which is affected by the universe. Space magnetic field and light field constraints; cosmic space does not provide kinetic energy to photons and light waves, but only provides a place for light to travel, allowing light to propagate in infinite space.