I'm not saying that Sam J. Jones was Flash Gordon - there's no such thing. No actor can be the person, that's a bunch of crap. People pay to see an actor be himself, whether he plays Hamlet or whatever.
He has a method that likens the musician to an athlete, so I do physical exercises designed to keep a musician in shape in order to perform the function, which is to play music.
We speculate as to what is in store for us. But we not only undergo events, we in part cause them or at least influence their course. We have not only to study them but to act.