Krishna & Varuna – High Quality Print of Artwork by Pieter WeltevredeNanda, Krishnas foster father, observed a fast on Ekadashi, the eleventh day after the full moon. He went to bathe in the Yamuna River the following morning, but he went too early, during the inauspicious time, also known as the demonic time in astrology. Because of this, the servants of Varuna, the god of oceans, captured Nanda and took him to Varunas realm. When Krishna learned about this, he set out to rescue his father and went to Varunas abode.