Those pillars encompass a much wider spectrum of activities than just asana practice.
According to Patanjali’s Ashtanga Yoga, also known as the eightfold path, a yogi is not just someone who practices asana. In fact asana is just one of the eight limbs. Instead, Patanjali presents one by one the eight pillars of a yogic life. Those pillars encompass a much wider spectrum of activities than just asana practice. How one interacts with others in society, what imprint they leave on the earth, in other words how they live their life off the mat is of outmost importance.