According to Vedic religion, Vedic conception, every planet contains living entities. That is also very natural to conclude, because within this material world, everything is made of five elements, gross: earth, water, air . . . earth, water, fire, air and sky. These are gross elements. And the subtle elements are mind, intelligence and ego. So in some of the planets earth is prominent, some of the planets water is prominent, some of the planets the fire is prominent. In this way these five elements, gross elements.
Every planet in the material world is made of these five gross elements. So just like here also we can experience that some of the living entities, just like the fishes, they are living in the water very peacefully. But if you are put into the water, you will not be comfortable. Perhaps you will die. Similarly, if the fishes are taken—that also we experienced—from the water, they will die on the land. Here we can see that some of the living entities, they can live comfortably within water. Some of the living entities, they can live comfortably on land, some of them in the air. Similarly, why not some of them in fire? Because after all, fire is also one of the material elements.
So according to Vedic scripture there is life in the sun planet also. They have got fiery bodies. That's all. That is the difference. Just like the fishes here, we see they have got watery bodies, similarly, one may have got fiery body. From logic, from argument, we cannot deny that. So this example, that in the sun planet there is a predominating deity or president or god, whatever you call, he is called sun-god, and his name is also mentioned in the Bhagavad-gītā, Vivasvān. His name is also there.