there once was a man who was blind from birth.  never having known what it was like to see, no matter how his friends tried to explain the world THEY saw, the blind man could not understand.  he simply didn't know, what he didn't know.

miraculously, a doctor found a cure and the opportunity for the blind man to finally see presented itself.  after much consideration, the blind man said he wanted to go through with this operation . . . but only on one condition.

he wanted to keep his cane.  and if he couldn't keep his cane, then he'd rather stay blind.

there was the bikram class, where no matter how many times the teacher cued triangle pose with a bent knee, a student kept hers straight . . . probably due to habit. 

*this is the way i've always done it!

there was the ashtanga class, where no matter how may times the teacher instructed side angle with the hand flat to the floor, a student stayed to her finger tips . . . doubt being the culprit.  *my body won't let me move past this point.

there was the power vinyasa class, where it didn't matter what the rest of the class was doing, a student went rogue and did his own thing . . . dare i say ego?  *let me show you how i think it should be performed.

or finally the flow class, where no amount of help and encouragement could persuade a student to try his first handstand. . . fear taking hold.  *but what if i fall?