Bhagavad Gita, Chapter 6, Verse 11

शुचौ देशे प्रतिष्ठाप्य स्थिरमासनमात्मनः । नात्युच्छ्रितं नातिनीचं चैलाजिनकुशोत्तरम्

śucau deśe pratiṣṭhāpya sthiramāsanamātmanaḥ | nātyucchritaṃ nātinīcaṃ cailājinakuśottaram

Translation

Having in a cleanly spot established a firm seat, neither too high nor too low, with cloth, skin, and kuśa grass thereon;

— Alladi Mahadeva Sastri

Word meanings

śucau
(in a) pure
deśe
in a place
pratiṣṭhāpya
having established
sthiram
firm
āsanam
seat
ātmanaḥ
of self (his own)
na
not
atyucchritam
very-high
na
not
atinīcam
very-low
celājinakuśottaram
cloth, and, skin, and, grass, and, in succession, in which, that

Śaṅkarācārya's commentary

Cleanly: either naturally so, or made so by artificial improvements. Cloth, etc., should be spread on the seat in the reverse order of their enumeration here (kuśa grass at the bottom, then skin, then cloth on top).