6.10 A yogi, a man of meditation; satatam yunjita, should constantly concentrate; atmanam, his mind; sthitah, by staying; rahasi, in a solitary place, in mountain caves etc.; ekaki, alone, without any companion; yata-citta-atma, with mind and body controlled; nirasih, without expectations, free from hankering; and aparigrahah, free from acisition.
From the uise of the alifying words, 'in a solitary place' and 'alone', it follows that (he has to undertake all these) after espousing monasticism. And even after renunciation, he should concentrate his mind by desisting from all acisition. This is the meaning.
Now then have to be stated the rules regarding seat, food, movements, etc. as disciplines for yoga in the case of one practising concentration; as also the signs of one who has succeeded in Yoga, and the conseent result etc. Hence this is begun. Among these, the seat is being first spoken of: