There are those who think Yoga is nothing else but standing on one's head or sitting somewhere in a Buddha-like posture without moving. There are those who think Yoga is some kind of physical education and is meant to relax.
Yoga is some kind of therapy.
In short, great demands are made on Yoga, the possible and the impossible, the reasonable and the unreasonable. The amazing thing is Yoga indeed can give you quite a great deal of all what has just been summed up. Not from one day to the next, no, for Yoga is a process of growing steadily, of ripening. Yoga has nothing whatsoever to do with acrobatics, is no fancy fashion, no whims and tricks, no ascetism, no gymnastics, no physical education, no secret Eastern hocus-pocus. Yoga does not solve all problems of life, but sheds new light on them, so as to make it possible for us to tackle with them in a different but much more efficient way.