Strange dreams about events?

I'm a 17-year-old man and very curious, so I look at a lot of things, like books or social media like Instagram. I'm also learning a lot. For about a year now, I've been having strange dreams about capitalism and the universe, how big it could be, etc., like theories or claims. I often have a very objective way of thinking (I'm not very emotional). I often think about the pyramid of power (see picture). And I can't sleep because of those thoughts. Does anyone have any idea why my dreams are the way they are?

My dreams are also often about speeches by famous people or executions. I also dream of myself behind a prism and in there I go through different personalities and actions (determined by the personality) which are often presented as very external.