"You're not the center of the universe."
Oh yes I am.
While this phrase is obviously a metaphor, it's also a fallacy. When I take a look at the sentence's literal meaning, I cannot help but laugh at its irony. An infinite universe can not contain a center. Now, this is from a third person perspective - one that assumes that we are all experiencing the same existence. So, that got me thinking. If reality is relative to each individual, as they wouldn't perceive existence without their OWN brain and each brain is unique, then everyone experiences a different reality. Our brains make it possible for us to exist and know we're existing. Since everyone sees the world differently, creating different perspectives of reality, it's almost as if everyone is existing in their own personal dimension, each clashing with those around them.
Now, if you're still following me, great. If not, let me try to simplify and make some sort of sense. Without your brain you couldn't perceive reality and therefore wouldn't exist. With your brain you create your reality. So, hypothetically, since everyone lives in first person, each person is the center of their own universe. Space is infinite in all directions. You are one point in space. Therefore you are a center. The center of your existence.