(31) By perfectly concentrated Meditation on the centre of force in the channel called the “tortoise-formed,” comes steadfastness.

(11) 'This, the firm holding back of the senses, is what is called Yoga. He must be free from thoughtlessness then, for Yoga comes and goes.'

(54) The right Withdrawal is the disengaging of the powers from entanglement in outer things, as the psychic nature has been withdrawn and stilled.

(2) Ajatasatru said: ' When this man has fallen asleep thus, then the peison who consists of intelligence having by his intelligence taken to himself the intelligence of these senses (prana\ rests in that place which is the space within the heart. When that person restrains the senses, that person is said to be asleep. Then the breath is restrained, The voice is restrained. The eye is restrained. The ear is restrained. The mind is restrained. 1 8. When he goes to sleep, these worlds are his. Then he becomes a great king, as it were. Then he becomes a great Brahman, as it were. He enters the high and the low, as it were. As a great king, taking with him his people, moves around in his own country as he pleases, even so here this one, taking with him his senses, moves around in his own body (tarlra) as he pleases.

(10) 'When the five instruments of knowledge stand still together with the mind, and when the intellect does not move, that is called the highest state.'

(6) 'But he who has understanding and whose mind is always firmly held, his senses are under control, like good horses of a charioteer.'

(218) He in whom a desire for the Ineffable (Nirvâna) has sprung up, who is satisfied in his mind, and whose thoughts are not bewildered by love, he is called ûrdhvamsrotas (carried upwards by the stream).

(5) When they have reached him (the Self), the sages become satisfied through knowledge, they are conscious of their Self, their passions have passed away, and they are tranquil. The wise, having reached Him who is omnipresent everywhere, devoted to the Self, enter into him wholly.

(96) His thought is quiet, quiet are his word and deed, when he has obtained freedom by true knowledge, when he has thus become a quiet man.

(6) 'Having understood that the senses are distinct (from the Âtman), and that their rising and setting (their waking and sleeping) belongs to them in their distinct existence (and not to the Âtman), a wise man grieves no more.'