28. And thus it has been said elsewhere: After having left behind the body, the organs of sense, and the objects of sense (as no longer belonging to us), and having seized the bow whose stick is fortitude and whose string is asceticism, having struck down also with the arrow, which consists in freedom from egotism, the first guardian of the door of Brahman (for if man looks at the world egotistically, then, taking the diadem of passion, the earrings of greed and envy, and the staff of sloth, sleep, and sin, and having seized the bow whose string is anger, and whose stick is lust, he destroys with the arrow which consists of wishes, all beings)--having therefore killed that guardian, he crosses by means of the boat Om to the other side of the ether within the heart, and when the ether becomes revealed (as Brahman), he enters slowly, as a miner seeking minerals in a mine, into the Hall of Brahman. After that let him, by means of the doctrine of his teacher, break through the shrine of Brahman, which consists of the four nets (of food, breath, mind, knowledge, till he reaches the last shrine, that of blessedness and identity with Brahman). Thenceforth pure,

clean, undeveloped, tranquil, breathless, bodiless, endless, imperishable, firm, everlasting, unborn and independent, he stands on his own greatness , and having seen (the Self), standing in his own greatness, he looks on the wheel of the world as one (who has alighted from a chariot) looks on its revolving wheel. And thus it is said:

'If a man practises Yoga for six months and is thoroughly free (from the outer world), then the perfect Yoga (union), which is endless, high, and hidden, is accomplished.

But if a man, though well enlightened (by instruction), is still pierced by (the gunas of) passion and darkness, and attached to his children, wife, and house, then perfect Yoga is never accomplished .'

29. After he had thus spoken (to Brihadratha), Sakayanya, absorbed in thought, bowed before him, and said: 'O King, by means of this Brahma-knowledge have the sons of Pragapati (the Valakhilyas) gone to the road of Brahman. Through the practice of Yoga a man obtains contentment, power to endure good and evil, and tranquillity. Let no man preach this most secret doctrine to any one who is not his son or his pupil , and who is not of a serene mind. To him alone who is devoted to his teacher only, and endowed with all necessary qualities, may he communicate it .