I've done a little yoga, not as a professional, and every time I have a good teacher I see the immense possibilities and subtleties in this discipline. It's a little bit like music.
The practice of yoga certainly is a fantastic practice. I only wish I would do it more. I find I can do it alone but it is much better if I have some guidance. Although I can do it alone it is a little bit sloppy. Ultimately, all of those techniques try to bring more oxygen to the brain. We can think and love better if we have more oxygen.
Yoga is a natural thing.