What Is “Real”?

What if our “dreams” are reality, and our “reality” is just a dream? Would that mean that we can choose when to take a break from our dreams and enter into reality? I suppose that would also mean that we have no control over when we dream and take a break from reality. What if none of this is real? Maybe it is all a dream and sometimes we dream during our dream. Does anyone else actually exist or am I imagining everyone else? Maybe you don’t really exist. I know that I exist or else I wouldn’t be able to type this. But how do I know that you are real and not just a figment of my imagination. Even if you type a response to this or come up and talk to me, how do I know that it happened outside of my control? Maybe everyone and everything outside of me is something that I created in my head to keep me company. Anything you say or do could just be something that I decided to have happen. Maybe the only things that are real are the things that I say and do myself, by my choice, under my own power. Or maybe I just need to go to sleep. Hmm…will I be entering into a dream or into reality if I go to sleep right now? I think I will go find out. I will try to update you on my findings later.