A -> B -> A

 You: 'Why trying to see two opposites as the same thing would lead me to seeing this 1 essense?"

Him: "Becuase anything has opposite aspects, and if you practice your brain to see opposite aspects in anything you can see it this 1 eseense"

What to answer?

a. How do you figure anything has opposite aspects?

b. Why do you view the brain as a muscle? Can't we attemp to understand staff like that via research?