"The Panis, says Sri Aurobindo", are constantly spoken of as Dasyus and Dasas, and he ·adds: "We may take as the master-clue to the general character of these Dasyus the Rik V.14.4. 'Agni born shone out slaying the Dasyus, the darkness by the Light: he found the Cows, the Waters, Swar', agnir jato arocata, ghnan dasyiin jyotisa tamab avindad gaapah. svah. There are two great divisions of the Dasyus, the Panis who intercept both the cows and the waters but are especially associated with the refusal of the cows , the Vritras who intercept the waters and the light, but are especially associated with the withholding of the waters; all Dasyus without exception stand in the way of the ascent to Swar, and oppose the acquisition of the wealth by the Aryan seers. The refusal of the light is their opposition to the vision of Swar, svardrs , and the vision of the sun, to the supreme vision of knowledge , upama ketuh (V. 34.9); the refusal of the waters is their opposition to the abundant movement of Swar, svarvatir apah, the movement or strearnings of the Truth, rtasya presa, rtasya dharah; the opposition to the wealth-acquisition is their refusal of the abundant substance of Swar, vasu, dhana, vaja, hiranya, that great wealth which is found in the sun and in the waters , apsu siirye mahad dhanam (VIII.68.9). Still since the whole struggle is between the Light and the Darkness, the Truth and the Falsehood, the divine Maya and the undivine, all the Dasyus alike are here identified with the Darkness; and it is by the birth and shining .of Agni that the Light is created with which he slays the Dasyus and the Darkness. The historical interpretation will not do at all here, though the naturalistic may pass if we isolate the passage and suppose the lighting of the sacrificial fire to be the cause of the daily sunrise; but we have to judge from a comparative study of the Veda and not on the strength of isolated passages.""