Without the awareness of a thing, does it really exist? No. Not to you. And the only things real in your life are the things you know. Everything that is real exists in your own brain. If it doesn’t exist there, it does not exist to you. It only exists elsewhere, whether known or unknown to others.
If you doubt this, remember: The average human eye can see only 1 million colors. I say “only” 1 million because tetrachromats- humans who possess four cone cells in their eyes rather than the average three cone cells- can see up to 100 million colors. Had you not read this, you would assume you were able to see maybe not all of the colors, but all of the colors the eye could see.
Never forget that everything you learn can change your entire reality. Take in every bit of knowledge you can. Make your universe everything you want it to be.