"The legend of Indra’s slaying VRtra… in the Vedas is merely an allegorical narrative of the production of rain. VRtra, sometimes also named Ahi, is nothing more than the accumulation of vapour condensed or figuratively shut up in, or obstructed by, a cloud. Indra, with his thunderbolt, or atmospheric or electrical influence, divides the aggregate mass, and vent is given to the rain which then descends upon the earth."