do you exercise yoga, i mean the hatha yoga
No, I don't. I don't know anything about it. What is hatha yoga?
it is a branch of yoga that is important for mastering the body and mind.. simply it is an exercise
Oh, does it involve meditation?
no .. i dont think so.. it involves some physical techniques 
Oh. What are they? Stretching, special breathing?
yeah.. kind of... i guess the music rock bands have the same effect in mind