PATANJALI say's if we stable our body in a posture (fix position) or Asan, our mind will automatically scilent. So body and mind are include with each other. And both are effected with eachorthr. So ASAN is Important.
Asana is a Body posture, it is a Sanskrit word used to describe a position of the body. Patanjali, the founder of Ashtanga Yoga defines asana as "Steady and comfortable posture". Traditionally many asanas are practiced in Hatha Yoga tradition, primarily to achieve better physical and mental health. Asanas have deep impact on the entire body and mind complex, it affects different systems in the body like muscular, respiratory, circulation, digestive, excretory, reproductive, endocrine, nervous system.
There are many Asan, but we can do some inportant daily 15-30 minutes.