So this sun example we have to understand, that to understand the sun there are three divisions. The first division is the sunlight or sunshine. The sunshine is all-pervading over the universe. It is not imagination. We get from Vedic information. It is said, yasya prabha prabhavato jagad-anda-koti. This is brahmajyoti. Yac-caksur esa savita sakala-grahanam. Savita, the sun-god, is called yac-caksur esa savita sakala-grahanam raja samasta-sura-murtir asesa-tejah. So the sun is described as the eye of the Supreme Lord. Just like we have got our eyes; we can see to some extent, three feet, four feet, or ten feet, or hundred feet. But the eyes of God is so powerful, He can see the whole universe. Yac-caksur esa savita. Savita means the sun. The sun is... So we have to study in this way. People say, "Can you show me God?" Yes, why not? You just try to see God. Here you see the eyes of the God: the sun, the moon. Why don't you see it? Yac-caksur esa savita. Just try to understand the one eye of God, then another eye, then try to understand other senses. But you cannot understand even one eye. What you will understand of God? In the Bhagavad-gita it is said, raso 'ham apsu kaunteya: "The taste in the water I am." Just try to understand. Prabhasmi sasi-suryayoh: "I am the shining in the sun and the moon. I am the sound in the sky." So this light, sound, these are scientific studies. Krsna says, Bhagavan says, that "I am the sound in the sky." So if you can practically study sound, light, nicely, scientifically, then you'll see Krsna also.