6.11 शुचौ in a clean, देशे spot, प्रतिष्ठाप्य having established, स्थिरम् firm, आसनम् seat, आत्मनः his own, न not, अत्युच्छ्रितम् very high, न not, अतिनीचम् very low, चैलाजिनकुशोत्तरम् a cloth, skin and Kusagrass, one over the other.Commentary: In this verse the Lord has prescribed the external seat for practising meditation. Details of the pose are given in verse 13.Spread the Kusagrass on the ground first. Over this spread a tigerskin or deerskin over this spread a white cloth.Sit on a naturally clean spot, such as the bank of a river. Or, make the place clean, wherever you want to practise meditation.