Why is the inner light so confusing while the sun is obvious?

the sun which is in the form of we may get time or some other effect that temperature may go up. But what is there on the inside and why is that given so much importance? Do you find that there's a light inside? Yes, I have it. It's a mystery, you know that light, we feel easy to say yes, but if question, I don't know. But we are not confused like that about the sun. You can be looking at the sun, it should be at you, we are not confused about it. So, why is it so confusing what is there on the inside?