Considering Yoga only as a fitness activity is like valuing a diamond as a piece of glass.

Definition of Yoga:

Yoga Chitta Nirodha

Stoppage of flickering of the mind. Yoga is to achieve equanimity in pain & pleasure, happiness & sorrow.

“ġham aur ḳhushī meñ farq na mahsūs ho jahāñ,maiñ dil ko us maqām pe laatā chalā gayā.”(Film: Hum Dono, Lyrics: Sahir Ludhianvi)

This is the true practice of Yoga. This is a 24 x 7 activity.

For those who are interested in the history of Yoga, here is an interesting film. This film depicts the Indian history of 6000 years.