Air Marshal Subroto Mukherjee Open Unit Air Wing Scouts Group Alipurduar District Association, West Bengal Celebrated International Day 21 June 2021 Yoga is essentially a spiritual discipline based on an extremely subtle science, which focuses on bringing harmony between mind and body. It is an art and scince of healthy living. The word 'Yoga' is derived from the Sanskrit root 'Yuj', meaning 'to join' or 'to yoke' or 'to unite'.