Khandogya-Upanishad: Sixth Prapathaka, Fourteenth Khanda

1. “As one might lead a person with his eyes covered away from the Gandharas, and leave him then in a place where there are no human beings; and as that person would turn towards the east, or the north, or the west, and shout, ‘I have been brought here with my eyes covered, I have been left here with my eyes covered,’”

2. “And as thereupon some one might loose his bandage and say to him, ‘Go in that direction, it is Gandhara, go in that direction;’ and as thereupon, having been informed and being able to judge for himself, he would by asking his way from village to village arrive at last at Gandhara,—in exactly the same manner does a man, who meets with a teacher to inform him, obtain the true knowlede. For him there is only delay so long as he is not delivered (from the body); then he will be perfect.”

3. “That which is the subtile essence, in it all that exists has its self. It is the True. It is the Self, and thou, O Svetaketu, art it.”

“Please, Sir, inform me still more,” said the son.

“Be it so, my child,” the father replied.