The Brechtian Way for an actor

I needed a little review on how the Brecht technique differs from other techniques like Michael Chekhov:

-Not to impersonate, but to narrate
-Must be relax, not letting muscles get tense
-The Brechtian actor needs to be in control of his or her emotions
-Aware to the presence of the audience is vital
-It is about the story, not the characters

http://www.teachit.co.uk/armoore/drama/brecht.htm#13