The River Yamuna is considered to be the younger sister of Yamaraja. Krsna is the life of the river Yamuna, because He used to enjoy jumping over the river of Yamuna.
Because of constant rain sent by the demigod Indra, the River Yamuna was filled with deep water, foaming about with fiercely whirling waves. But as the great Indian Ocean had formerly given way to Lord Ramacandra by allowing Him to construct a bridge, the River Yamuna gave way to Vasudeva and allowed him to cross.
While Balarama was in that happy mood, He desired to enjoy the company of the gopis in the water of the Yamuna. Therefore He called Yamuna to come nearby. But Yamuna neglected the order of Balaramaji, considering Him to be intoxicated. Lord Balarama became very much displeased at Yamuna's neglecting His order. He immediately wanted to scratch the land near the river with His plowshare. Lord Balarama has two weapons, a plow and a club, and He takes service from them when they are required. This time He wanted to bring the Yamuna by force, and He took the help of His plow. He wanted to punish Yamuna because she did not come in obedience to His order. He addressed Yamuna: "You wretched river! You did not care for My order. Now I shall teach you a lesson! You did not come to Me voluntarily. Now with the help of My plow I shall force you to come. I shall divide you into hundreds of scattered streams!"
When Yamuna was threatened like this, she became greatly afraid of the power of Balarama and immediately came in person, falling at His lotus feet and praying thus: "My dear Balarama, You are the most powerful personality, and You are pleasing to everyone. Unfortunately, I forgot Your glorious, exalted position, but now I have come to my senses, and I remember that You hold all the planetary systems on Your head merely by Your partial expansion of Sesa. You are the sustainer of the whole universe. My dear Supreme Personality of Godhead, You are full of six opulences. Because I forgot Your omnipotence, I have mistakenly disobeyed Your order, and thus I have become a great offender. But, my dear Lord, please know that I am a surrendered soul unto You. You are very much affectionate to Your devotees. Therefore please excuse my impudence and mistakes and, by Your causeless mercy, may You now release me."
Upon displaying this submissive attitude, Yamuna was forgiven, and when she came nearby, Lord Balarama wanted to enjoyed the pleasure of swimming within her water along with the gopis in the same way that an elephant enjoys himself along with his many she-elephants. After a long time, when Lord Balarama had enjoyed to His full satisfaction, He came out of the water, and immediately a goddess of fortune offered Him a nice blue garment and a valuable necklace made of gold. After taking bath in the Yamuna, Lord Balarama, dressed in blue garments and decorated with golden ornaments, looked very attractive to everyone. Lord Balarama's complexion is white, and when He was properly dressed He looked exactly like the white elephant of King Indra in the heavenly planets. The river Yamuna still has many small branches due to being scratched by the plowshare of Lord Balarama. And all these branches of the river Yamuna are still glorifying the omnipotence of Lord Balarama.
Bhaktivedanta Book Trust. Excerpted from various sources, including text and Purport of HDG A.C. Bhaktivedanta Swami Srila Prabhupada.
Painting is from the collection of St. Petersburg Institute of Oriental Studies.