After returning from the spiritual kingdom, which he was able to visit personally with Kṛṣṇa, Arjuna was very much astonished. He thought to himself that although he was only an ordinary living entity, by the grace of Kṛṣṇa it had been possible for him to see the spiritual world. Not only had he seen the spiritual world, but he had also personally seen the original Mahā-Viṣṇu, the cause of the material creation. It is said that Kṛṣṇa never goes out of Vṛndāvana: vṛndāvanaṁ parityajya pādam ekaṁ na gacchati. Kṛṣṇa is supreme in Mathurā, He is more supreme in Dvārakā, and He is most supreme in Vṛndāvana. Kṛṣṇa’s pastimes in Dvārakā are displayed by His Vāsudeva portion, yet there is no difference between the Vāsudeva portion manifested in Mathurā and Dvārakā and the original manifestation of Kṛṣṇa in Vṛndāvana. In the beginning of this book we have discussed that when Kṛṣṇa appears, all His incarnations, plenary portions and portions of the plenary portions come with Him. Thus some of His different pastimes are manifested not by the original Kṛṣṇa Himself but by His expansions.
Why Arjuna was puzzled by Kṛṣṇa’s going to see Kāraṇārṇavaśāyī Viṣṇu in the spiritual world is fully discussed in the commentaries of Śrīla Viśvanātha Cakravartī Ṭhākura, as follows. It is understood from the speech of Mahā-Viṣṇu that He was very eager to see Kṛṣṇa. It may be said, however, that since Mahā-Viṣṇu took away the brāhmaṇa’s sons, He must certainly have gone to Dvārakā to do so. Therefore, why did He not see Kṛṣṇa there? A possible answer is that unless Kṛṣṇa gives His permission, He cannot be seen even by Mahā-Viṣṇu, lying in the Causal Ocean of the spiritual world. Thus Mahā-Viṣṇu took away the brāhmaṇa’s sons one after another just after their births so that Kṛṣṇa would come personally to the Casual Ocean to retrieve them, and then Mahā-Viṣṇu would be able to see Him there. If that is so, the next question is this: Why would Mahā-Viṣṇu come to Dvārakā personally if He were not able to see Kṛṣṇa? Why did He not send some of His associates to take away the sons of the brāhmaṇa? A possible answer is that it is very difficult to put any of the citizens of Dvārakā into trouble in the presence of Kṛṣṇa. Therefore, because it was not possible for any of Mahā-Viṣṇu’s associates to take away the brāhmaṇa’s sons, He personally came to take them.