Because the sunshine is there, so many varieties of planet are coming out, and in each and every planet there are so many varieties of vegetation, human being, animals, seas, mountain. And similarly... This is explained in the Brahma-saṁhitā: yasya prabhā prabhavato jagad-aṇḍa-koṭi (BS 5.40) . Yasya prabhā. These innumerable universes, how they have been possible? How they are existing? That is explained in the Brahma-saṁhitā, "On account of Kṛṣṇa's effulgence." You see Kṛṣṇa. When Kṛṣṇa is sitting, you will find effulgence. That effulgence, it is so full of potencies. Same way, as the sunlight, sunshine, is so full of potencies—they are producing so many planets, varieties—similarly, you can understand how much Kṛṣṇa's effulgence, that shining from His body, is potential. So that is stated in the Brahma-saṁhitā. Coming out universes. And within the universes there are planets, and within the planet there are so many varieties, and within the varieties there are so many differentiation.
So this is all expansion. Try to understand how Kṛṣṇa... Because we have got very limited knowledge. Ātmavat manyate jagat. The same Dr. Frog. Dr. Frog is calculation in his own way, and he is puzzled how there can be an Atlantic Ocean or Pacific Ocean. Because he has never experienced, he has no idea, he is thinking, "This three feet water expansion, that is very big water." So our folly is that we are trying to study Kṛṣṇa, or God, by our own standard, frog standard. We do not know how great Kṛṣṇa is, how His potency is great, how He is manufacturing, how He is... Because we think, "If we have to manufacture something, I require some tools, I require some energy, I require some ingredients. I have to collect it. Then I can make." Therefore we are surprised, "How Kṛṣṇa can make, or how God can create, this universe? Where is that instrument? Where is that ingredient?" They cannot. They are thinking in that way, that "I require instrument. Kṛṣṇa requires the hammer and the saw to manufacture this comic manifestation." I am thinking in that way. Therefore I cannot believe it, how the cause of this cosmic manifestation can be a person. They are thinking imperson. Impersonal bigness, they think it is very important. Actually, it has no value. Background is person. Kṛṣṇa says in the Bhagavad-gītā that brahmaṇo 'haṁ pratiṣṭha: "The impersonal Brahman, I am the cause. I am the source of impersonal Brahman."
So these things cannot be understood by ordinary brain. It requires a different brain. That brain is created by devotional service, these finer tissues. Just like those who are dull materialists, their brain is congested with so much rubbish thing, they cannot understand that it is through the bodily effulgence of the Lord the potential manifestation is this cosmic manifestation. They will think that like Dr. Frog, "If it is created by God, where He got so much ingredient, so much instrument, that He created?" Yes. But God's creation is not like that. Automatically, the effulgence is coming. Just like the sun, from the sun disc, automatically the heat is profusely distributed and everything is taking place out of His own... The sun-god, or the sun, or the predominating deity in the sun planet, he does not come out to manufacture another planet. He is there. You can understand from this material example how things are being created through the sunlight, how the planets are growing due to sunlight. If there is no sunlight, we'll see all plants will die. That is our experience. And because the sunlight is there, the plant is growing, they are becoming green, they are becoming red, they are becoming flavored. So all interaction of these five elements, water, earth, fire, heat and ether... So wherefrom the sunlight comes? From the sun. Wherefrom the sun comes? From the brahmajyoti. Wherefrom the brahmajyoti comes? It is from Kṛṣṇa. Try to understand how Kṛṣṇa is the Absolute Truth or the original source of everything. Mattaḥ sarvaṁ pravartate, ahaṁ sarvasya prabhavaḥ: BG 10.8 "I am the origin. I am the source of all creation." Bhagavad-gītā says. "And from Me everything is coming." Sarva. Sarva means whatever you can think, everything is coming from... If you think for the time being about the sun, what is the sun? The sun is also coming from Him. Sarvam. Sarvam means including everything. Sarvam ahaṁ sarvasya prabhavaḥ. He is the origin of Brahmā. Generally, we think Brahmā has created. Brahmā is also created by Him. Lord Śiva is also created by Him. Because from Brahmā, Rudra... Rudra is stated to be the son of Brahmā. So Brahmā is the son, or born out of the lotus flower from the abdomen of Viṣṇu. Viṣṇu is expansion of Kṛṣṇa. In this way Kṛṣṇa is the origin of everything. That is a fact. That is the verdict of all Vedic literature. Yasmin vijñāte sarvam idaṁ vijñātaṁ bhavati. If you can understand the original person, Kṛṣṇa, then everything will come to your knowledge. Everything will be understood: how everything is existing, how they are appearing, how they are disappearing, how they are existing. Everything will be known.