Krishna and Balarama
Lord Krishna and Balarama are not two different Personalities of Godhead. God is one without a second, but He expands Himself in many forms without their being separate from one another. They are all plenary expansions.
The immediate expansion of Lord Krishna is Balarama, and Brahma, born from the lotus flower from Garbhodakasayi Visnu, is an expansion of Balarama. This indicates that Krishna and Balarama are not subjected to the regulations of the universe; on the contrary, the whole universe is under Their subjugation.
Krishna and Balarama appeared at the request of Lord Brahma to liberate the burden of the world, and Krishna and Balarama relieved the world by many superhuman activities so that everyone became happy and prosperous.
Without the grace of the Lord, no one can become happy and prosperous. Because the happiness of the family of the Lord’s devotees depends on the happiness of the Lord, Vidura first of all inquired about the well-being of the Lord.