Kung fu was made so the monks could train their bodies and move their bodies with strength, so they could be physical enough to gain mental enlightenment. Before that, they kept falling asleep when [masters] were trying to teach them.
RZAI had a lot of problems in my life. I've been a sickly kid, I had a strange life. They said I could have been blind, handicapped, asthmatic, there were all kind of different problems about me.
RZAI advise everyone to find an island in this life. Find a place where this culture can't take energy away from you, sap your will and originality. Since anything physical can be mental, that island can be your home. Turn off the electromagnetic waves being forced upon you, the countless invisible forces coming at you all the time.
RZA