Is Yoga an Art?

I am reading a book written by Geeta Iyengar called Yoga a gem for women. As I was reading I came across the question is yoga an art?

Living is an art. Yoga enhances the quality of

 one's life. Hence it is an art. It lifts up one's

thoughts and enables one to face life's difficult situations happily

 and with equanimity; it teaches one to strive to

achieve a goal in life; to cultivate friendliness, concentration,

piety, contentment, joy, and to discard what is non-essential; to cultivate good habits

and to lead a righteous life. Yoga is disciplined action to

achieve and attain final freedom.

 

 

                                                                                                     -Geeta Iyengar