mental side?
Yes, its straight forward, train eat rest grow, its not rocket science.
Some are better at it than others I grant you but essentially its the same.
Kai is no different than the rest, he is either too dumb to realise he isn't special or acting, take your pick.
He's an artist. And like many artists, he trys to peek beyond or beneath the mundane layers of what he does or everyday life. Symbolism within bbing.
Whatever man's craft is, if he is truly into it, he will take it over the top...Kai is bbing, and bbing is Kai. And he seeks to convey that in different mediums---be it thru posing, art, or his verbal musings.
It's funny how people complain that bbers have no personality, then when there is one, they complain that he has a personality. Maybe it's not Kai that is stupid.