In some episodes of the Epos and narratives of the Puranas we find legends of kings and warriors who because they did not show the proper respect for the Brahmans, or opposed them, were severely punished, and of saintly heroes who slew the Kshatriyas. We cannot, however, assume, that in the one or the other there is concealed any historic reminiscence. They are merely intended to set up terrifying examples of the lot which awaited kings and Kshatriyas who ventured to disregard the Brahmans. The book of the law tells us that the wise king Vena became infirm in mind owing to sensuality, and in this condition he brought about the mixture of the orders.[181] King Nahusha, Sudas, the son of Pijavana, and Nimi perished through want of humility, but Viçvamitra by his humility was raised to the rank of a Brahman.[182] All these names are taken from the legend as it existed previously to the great war. In the Rigveda, Vena is mentioned as the father of Prithu;[183] the Ramayana enumerates Vena and his son Prithu among the first successors of Ikshvaku, the progenitor of the kings of the Koçalas (p. 106). The Vishnu-Purana, which assigns the same position to Vena, tells us that he took upon himself to arrange the duties of men, and forbade the Brahmans to sacrifice to the gods; no one might be worshipped but himself. Then the holy Brahmans slew the sinner with swords of the sacred sacrificial grass, which had been purified by invocations. And when, on the death of the king, robbers sprung up on every side, the Brahmans rubbed the right arm of the dead king, and from it sprung the pious and wise Prithu, who shone like Agni; he ruled between the Yamuna and Ganges, and subdued the earth, and by this noble son Vena's soul was freed from hell. The Mahabharata tells us that Prithu inquired with folded hands of the great saints about his duties, and that they bade him maintain the Veda, abstain from punishing Brahmans, and protect society from the intermixture of the castes.[184] King Nahusha belongs to the royal race of the Bharatas; he is mentioned as the second successor of Pururavas (p. 82). The Mahabharata tells us that he was a mighty king, but he laid tribute on the saints, and forced them to carry him. Once he caused his palanquin to be carried by a thousand great sages, and because they did not go fast enough, he struck with his foot the holy Agastya who was among them. Then Agastya cursed him and he was changed into a serpent.[185] Nimi, according to the Ramayana, is a son of Ikshvaku, the progenitor of the Koçalas. He bade Vasishtha his priest offer a sacrifice for him, and Vasishtha undertook to perform the second half of it. But the king caused the sacrifice to be offered by another saint, by Gautama. When Vasishtha heard this he pronounced a curse on Nimi that he should lose his body, and Nimi forthwith died. He was not punished for rebellion against a Brahman, but because he had not submitted himself with absolute obedience to his own priest.