If Lord Kṛṣṇa were going to see Lord Viṣṇu only to reclaim the sons of the brāhmaṇa, then He would not have waited until the tenth son was taken. But when the tenth son was taken away by Lord Mahā-Viṣṇu, and Arjuna was therefore ready to enter the fire because his promise was going to prove false, that serious situation made Lord Kṛṣṇa decide to go with Arjuna to see Mahā-Viṣṇu. It is said that Arjuna is an empowered incarnation of Nara-Nārāyaṇa. He is even sometimes called Nara-Nārāyaṇa. The Nara-Nārāyaṇa incarnation is also one of Lord Viṣṇu’s plenary expansions. Therefore, when Kṛṣṇa and Arjuna went to see Lord Viṣṇu, it is to be understood that Arjuna visited in His Nara-Nārāyaṇa capacity, just as Kṛṣṇa, when He displayed His pastimes in Dvārakā, acted in His Vāsudeva capacity.
After visiting the spiritual world, Arjuna concluded that whatever opulence anyone can show within the material or spiritual worlds is all a gift of Lord Kṛṣṇa. Lord Kṛṣṇa is manifested in various forms, as viṣṇu-tattva and jīva-tattva, or, in other words, as svāṁśa and vibhinnāṁśa. Viṣṇu-tattva is known as svāṁśa, and jīva-tattva is known as vibhinnāṁśa. He can, therefore, display Himself by His different transcendental pastimes, in the portion of either svāṁśa or vibhinnāṁśa, as He likes, but still He remains the original Supreme Personality of Godhead.
The concluding portion of Kṛṣṇa’s pastimes is found in the Ninetieth Chapter of the Tenth Canto of Śrīmad-Bhāgavatam, and in this chapter Śukadeva Gosvāmī wanted to explain how Kṛṣṇa lived happily at Dvārakā with all opulences. Kṛṣṇa’s opulence of strength has already been displayed in His different pastimes, and now it will be shown how His residence at Dvārakā displayed His opulences of wealth and beauty. In this material world the opulences of wealth and beauty are considered the highest of all opulences, yet they are only a perverted reflection of these opulences in the spiritual world. Therefore, while Kṛṣṇa stayed on this planet as the Supreme Personality of Godhead, His opulences of wealth and beauty had no comparison within the three worlds. Kṛṣṇa enjoyed sixteen thousand beautiful wives, and it is most significant that He lived at Dvārakā as the only husband of these thousands of beautiful women. This is specifically stated—that He was the only husband of sixteen thousand wives. It is of course not unheard of in the history of the world that a powerful king would keep many hundreds of queens, but although such a king might be the only husband of so many wives, he could not enjoy all of them at one time. Lord Kṛṣṇa, however, enjoyed all of His sixteen thousand wives simultaneously.
Although it may be said that yogīs also can expand their bodies into many forms, the yogī’s expansion and Lord Kṛṣṇa’s expansion are not the same. Kṛṣṇa is therefore sometimes called Yogeśvara, the master of all yogīs. In the Vedic literature we find that the yogī Saubhari Muni expanded himself into eight. But that expansion was like a television expansion. The television image is manifested in millions of expansions, but those expansions cannot act differently; they are simply reflections of the original and can only act exactly as the original does. Kṛṣṇa’s expansion is not material, like the expansion of the television or the yogī. When Nārada visited the different palaces of Kṛṣṇa, he saw that Kṛṣṇa, in His different expansions, was variously engaged in each and every palace of the queens.
It is also said that Kṛṣṇa lived in Dvārakā as the husband of the goddess of fortune. Queen Rukmiṇī is the goddess of fortune, and all the other queens are her expansions. So Kṛṣṇa, the chief of the Vṛṣṇi dynasty, enjoyed with the goddess of fortune in full opulence. The queens of Kṛṣṇa are described as permanently youthful and beautiful. Although Kṛṣṇa had grandchildren and great-grandchildren, neither Kṛṣṇa nor His queens looked older than sixteen or twenty years of age. The young queens were so beautiful that when they moved they appeared like lightning moving in the sky. They were always dressed with excellent ornaments and garments and were always engaged in sportive activities like dancing, singing or playing ball on the roofs of the palaces. The dancing and tennis playing of girls in the material world are perverted reflections of the original pastimes of the original Personality of Godhead, Kṛṣṇa, and His wives.