‘In a pure place that is not too high and not too low, unmoving, he will place his seat, cloth and hide on kusha grass.’ Kusha is sacred grass. On a bed of kusha grass, the person who is meditating will first place the hide [ajina] of an animal and then on top of that, he will place a piece of cloth [chaila] for the seat. In those days, this was the yoga mat.
