The analogy to make all this rambling clear is that of me sitting in a room worried that if I close the curtains, it's going to get dark. But you're saying, no it doesn't make any difference because the light in the room is coming from the table lamp, not the window.

I understand some kind of argument now, whether or not its the one you intended. I'll meditate on it. I'll simply observe that I do, in fact, feel extremely depressed about the light coming from the table and there not being any sun.

Suppose that everyone has such a room, with a lamp giving a light just like your own. Is this not like a sun that we all share?