dhyānayoga - Verse śloka 11 and 12
śloka 11 and 12
śucau deśe pratiṣṭhāpya sthiramāsanamātmanaḥ |
nātyucchritaṃ nātinīcaṃ cailājinakuśottaram ||6-11||
tatraikāgraṃ manaḥ kṛtvā yatacittendriyakriyaḥ |
upaviśyāsane yuñjyādyogamātmaviśuddhaye ||6-12||
Translation
Having established his seat on a clean spot, neither too high nor too low, with kusha grass, a deerskin and cloth spread thereon—there, having made the mind one-pointed and subdued the activities of mind and senses, he should practice Yoga for the purification of the Self.