Knowledge . . . suppose I wanted to enjoy something in my past life. So Kṛṣṇa has given me a type of body so that I can enjoy, and He gives me reminder also: "Now you wanted to enjoy like this. You have got this opportunity. You do it." This is the proof. You'll find even a, what is called, the cub, born of an animal, the dog, cats and dogs, they find out where is the mother's breast. The human child also, they also try to find out where is the mother's breast.
Because they . . . they explain it as intuition. But we don't say it is intuition. Or even if you call "intuition," wherefrom it is coming? It is coming from Paramātmā. He's giving that, "You find out here. You'll find your mother's breast, and here is your food. Here is your food." Therefore even just after birth, the kiddy, or the small child, finds out where is the food. This is the explanation of intuition.
But the modern scientist, they say: "Intuition," but they cannot explain how the intuition is coming. It is explained in the Bhagavad-gītā: mattaḥ smṛtir jñānam apohanaṁ ca (BG 15.15). It is coming from Paramātmā, the Supreme Personality of Godhead. Antaḥ-praviṣṭa ābhāti vijñānena vijṛmbhitaḥ. But Kṛṣṇa, sarvasya cāhaṁ hṛdi-sanniviṣṭaḥ, as Paramātmā, He has entered in everyone's heart. He is in His knowledge. He knows that, "This individual soul wanted to enjoy this material world," so He gives him facility, "Now you enjoy."
Those who have no discrimination of eating—all abominable things one can eat—he's given the chance of eating everything up to stool in the form of a hog. The facility's given. One who is shameless . . . now this civilization has spread in the Western countries—they want to remain naked. There are so many nudie clubs. So next life they'll be given chance to become tree, to stand naked for thousands of years. This is laws of nature.
They do not know how they're getting chance, different types of body for different types of enjoyments, material enjoyment. Sometimes he's put as a poor man; sometimes he's put as a rich man. Sometimes as demigod, sometimes as cat, sometimes as dog. In this way, it is going on. But they are . . . there is no knowledge.
The modern civilization, they do not take care of this Vedic information, neither they have got any sufficient knowledge how these 8,400,000 species of life are becoming possible. They have no science. But here it is stated: antaḥ-praviṣṭa ābhāti vijñānena vijṛmbhitaḥ.