Humans are the same.
This is a path to self-destruction.
Brian, listen, you're not a Mutant. You can't gain significant strength enhancements through mental states.
There's no need to study these things."
Dean had a right to speak on this.
He too, was once an arrogant man, condescending and reckless, young and rash, until he almost got killed. After having a Mutant Beast's heart transplanted, his fiery temper could easily trigger a backlash from the mutant beast heart within him, which eventually calmed his mindset.
Brian knew Dean meant well for him, but Dean didn't understand his situation.
He was exploring these things to fulfill Yagyuu Kojirou's obsession. It was also the best way for him to maintain a steady increase in his Spiritual Strength and power, to avoid going out of control due to Mutation. Besides, he was a Mutant, and mindset really did have a significant impact on power.
Fulfilling Kojirou's obsession had many benefits for him.
