The Bhagavad Gita, one of the three key books of Vedanta school of Hinduism, states four Marga (paths) to purify one's mind and to reach the summit of spirituality - the path of Unselfish Work, the path of Knowledge, the path of Devotion and the path of Meditation (Dhyana) [REF].
Meditation in the Bhagavad Gita is a means to one's spiritual journey, requiring three moral values - Satya (truthfulness), Ahimsa (non-violence) and Aparigraha (non-covetousness) [REF].