The Satyakaṁ, he went to Gautama Muni for initiation. So formerly the spiritual master will not accept anybody as disciple if he is not born in a brahmin family. So he was asked, "Who is your father?" So he could not give his father's name. Then he asked him that "Go to your mother, who is your father. Just try to understand and let me know."
Then he went to his mother. Mother said: "My dear boy, I do not know who is your father. I had many friends. I do not know by whom you are born." And he came back and said Gautama Muni, "My mother said that he (she) had many friends. She cannot say who is my exactly father." "Oh, you are brahmin. Come on. I will initiate you. You are brahmin."
Qualification—he said the plain truth. Qualification. "Come on. I shall initiate." Nobody will say that, "Oh, I have no . . . my father (mother) had many friends, and I do know what is the . . ." Everyone will try to hide this. But he plainly said, immediately. And because he was so truthful, therefore his name is Satyakaṁ. Satyakaṁ means he does not lie.