Mucukunda knew well that every higher planetary system has a predominating deity. He was not ignorant like modern men who think that this planet earth is full of living entities and all others are vacant. The inquiry from Mucukunda about Kṛṣṇa’s being the predominating deity of a planet unknown to him is quite appropriate. Because he was a pure devotee of the Lord, King Mucukunda could immediately understand that Lord Kṛṣṇa, who had appeared before him in such an opulent feature, could not be one of the predominating deities of the material planets. He must be the Supreme Personality of Godhead, Kṛṣṇa, who has many Viṣṇu forms. Mucukunda therefore took Him to be Puruṣottama, Lord Viṣṇu. He could see also that the dense darkness within the mountain cave had been dissipated by the Lord’s presence; therefore He could not be other than the Supreme Personality of Godhead. Mucukunda knew very well that wherever the Lord is personally present by His transcendental name, qualities, form and so on, there cannot be any darkness of ignorance. He is like a lamp placed in the darkness; He immediately illuminates a dark place.
King Mucukunda was eager to know the identity of Lord Kṛṣṇa, and therefore he said, “O best of human beings, if You think I am fit to know Your identity, kindly tell me who You are. What is Your parentage? What is Your occupational duty, and what is Your family tradition?” King Mucukunda thought it wise, however, to identify himself to the Lord first; otherwise he had no right to ask the Lord’s identity. Etiquette is such that a person of less importance cannot ask the identity of a person of higher importance without first disclosing his own identity. King Mucukunda therefore told Lord Kṛṣṇa, “My dear Lord, let me first inform You of my identity. I belong to the most celebrated dynasty of King Ikṣvāku, but personally I am not as great as my forefather. My name is Mucukunda. My father’s name was Māndhātā, and my grandfather was the great king Yuvanāśva. I was very much fatigued due to not resting for many thousands of years, and because of this all my bodily limbs were slack and almost incapable of acting. To revive my energy, I was taking rest in this solitary cave, but I have been awakened by some unknown man who has forced me to wake up although I was not willing to do so. For such an offensive act, I have burned this person to ashes simply by glancing over him. Fortunately, now I can see You in this grand and beautiful feature. I think, therefore, that You are the cause of my killing my enemy. My dear Lord, I must admit that due to Your bodily effulgence, unbearable to my eyes, I cannot see You properly. I can fully realize that the influence of Your effulgence has diminished my power. I can understand that You are quite fit for being worshiped by all living entities.”
Seeing King Mucukunda eager to know about His identity, Lord Kṛṣṇa answered smilingly as follows: “My dear King, it is practically impossible to tell about My birth, appearance, disappearance and activities. Perhaps you know that My incarnation Anantadeva has unlimited mouths, and for an unlimited time He has been trying to narrate fully about My name, fame, qualities, activities, appearance, disappearance and incarnations, but still He has not been able to finish. Therefore, it is not possible to know exactly how many names and forms I possess. It may be possible for a material scientist to estimate the number of atomic particles which make up this earthly planet, but the scientist cannot enumerate My unlimited names, forms and activities. Many great sages and saintly persons have tried to list My different forms and activities, yet they have failed to make a complete list. But since you are so eager to know about Me, I may inform you that I have now appeared on this planet just to annihilate the demoniac principles of the people in general and reestablish the religious principles enjoined in the Vedas. I have been invited for this purpose by Brahmā, the superintending deity of this universe, and thus I have now appeared in the dynasty of the Yadus as one of their family members. I have specifically taken My birth as the son of Vasudeva in the Yadu dynasty, and people therefore know Me as Vāsudeva, the son of Vasudeva. You may also know that I have killed Kaṁsa, who in a previous life was known as Kālanemi, as well as Pralambāsura and many other demons. They have acted as My enemies, and I have killed them. The demon who was present before you also acted as My enemy, and you have very kindly burned him to ashes by glancing over him. My dear King Mucukunda, you are My great devotee, and just to show you My causeless mercy I have appeared in this cave. I am very affectionately inclined toward My devotees, and in your previous life, before your present condition, you acted as My great devotee and prayed for My causeless mercy. I have therefore come to see you to fulfill your desire. Now you can see Me to your heart’s content. My dear King, now you may ask from Me any benediction you wish, and I am prepared to fulfill your desire. It is My eternal principle that anyone who comes under My shelter must have all his desires fulfilled by My grace.”