Looking for the heavenly casket

Abstract Throughout Vedic literature, from the Ṛgveda to the Bṛhadāraṇyaka Upaniṣad, reference is occasionally made to a "heavenly casket" (divya kośa), from which water is poured down towards earth. Several attempts have been made to locate this vessel in the sky. In the present article the relevant materials are presented a new solution is proposed which combines, according to the well tested philological approach, mythological facts with a keen observation of nature.