Anta-kāle means "at the time of death." "At the time of death, one who remembers Me . . ." Anta-kāle ca mām eva. Mām eva. Mām eva means . . . eva means "certainly," and me means . . . mām means "me." "Certainly Me." The Supreme Personality of Godhead says, "Certainly Me." That means Kṛṣṇa, or Kṛṣṇa's expansion, the form—not formless. Mām. Formless . . . this is explained in the Twelfth Chapter, that kleśo 'dhikataras teṣām avyaktāsakta-cetasām (BG 12.5). One who is attached to the impersonal Brahman, then his business is troublesome. Kleśa. Kleśa means troublesome. Avyaktā hi gatir duḥkhaṁ dehavadbhir avāpyate. Dehavat. Because we are in this material body and our senses are not able to understand except something form. So if by artificial way I want to think of formless, it becomes a troublesome business.
Actually, God is not formless, but His form is different. Everything has form. Without form, there is nothing. Even the this smallest atom, it has got form. Just like in geometry, they describe a point has no length, no breadth—because the point is so small that our instrument, measuring instrument, fails to measure what is its length or breadth. Therefore they give it up that, "It has no length and no breadth." But actually, it is not a fact. It has got length and breadth, but we have no instrument, we have no power to see.
So spirit soul is aṇor aṇīyān mahato mahīyān. Spirit soul is the greater than the greatest and it is the smaller than the smallest. So we cannot see the smallest; we cannot see the greatest. Greater than the greatest. We can think of the greatest, the sky, the expansion of the sky—unlimited. But such skies, God is so great that innumerable, millions and billions of skies are within Him. In the Brahma-saṁhitā it is stated, yasyaika-niśvasita-kālam athāvalambya . . . (BS 5.30). Therefore we have to refer to the authoritative scripture to get knowledge. As I told you the other day, that transcendental knowledge has to be acquired by aural reception. There is no other way. Just like, practical. The geometrical calculation is that the sun, the dimension of the sun is many, many hundred, thousands of . . . greater than the earth. But we are seeing just like a disk. So our sense is unable to see how great it is. It is a material thing. So how we can see the greatness of God with these material eyes? It is not possible. As you are understanding about the sun by authoritative statement of the geometry, that this sun globe is so great, so many hundred thousands greater than the . . . but you are seeing just like a disk. So how to get the knowledge of the sun? By receiving through the ear. That's all. Simply you have to receive the knowledge from the authority. It is not that practically you are experimenting by going to the sun, that it is so great and so long, so broad. That is not possible. You have to receive such knowledge through authority. That's all.
So even for material understanding which is beyond our sense perception we have to receive knowledge from authority. Similarly, we cannot understand what is God. But from the authoritative sources we can understand that God is so great. Just like in the Brahma-saṁhitā it is stated that yasyaika-niśvasita-kālam athāvalambya jīvanti loma-vilajā jagad-aṇḍa-nāthāḥ (BS 5.30)—that you see this universe, and in each universe there is a predominating demigod which is called Brahmā, or jagad-aṇḍa-nātha, the master of the universe. That master of the universe is living, only taking the duration of breathing of Mahā-Viṣṇu. Just like you are breathing, inhaling and exhaling. So when Mahā-Viṣṇu exhales, innumerable universes come out. And when He inhales, all these universes go into His body. So just imagine how great He is, how big He is. That is not conceivable with our limited sense. But if we believe, then you get the perfect knowledge. There is no doubt. If you don't believe, there is no other way. You cannot understand what is God, or what is His length, what is His breadth.