Smriti texts also declare that he only who sits can meditate, 'Having
placed his steady seat upon a pure spot, there seated upon that seat,
concentrating his mind he should practise Yoga' (Bha. Gî. VI, 11-12).
11. Where concentration of mind (is possible), there; on account of
there being no difference.
As the texts do not say anything as to special places and times, the
only requisite of such places and times is that they should favour
concentration of mind. This agrees with the declaration 'Let a man apply
himself to meditation in a level and clean place, &c., favourable to the
mind' (Svet. Up. II, 10).--Here terminates the adhikarana of 'the
sitting one.'