So when one is inquisitive, jijñāsu... And jijñāsu means, what kind of jijñāsu, inquisitive? Śreya uttamam. Jijñāsuḥ śreya uttamam. There are fields, different fields of activities. So when becomes inquisitive to know the ultimate necessity, ātyantika-duḥkha-nivṛtti, ultimate necessity. Śreya uttamam. There are two things: śreya and preya. I have discussed all these thing many times. Preya means immediately very palatable. That is called preya. And śreya means ultimately good. Suppose if you take some palatable foodstuff, it may be very palatable to you... There are many examples. Just like smoking. Smoking. Everyone knows, the scientists, the doctor, they declare, "This is a nonsense thing. It should be avoided." They advertise even in the packet also. But people still smoke. But that is called preya. That is called preya. Preya means immediately very nice. And śreya means when one gives it up, "No, it will keep my health nice." That is śreya. Try to understand what is śreya and preya. Another example: just like a child he wants to play whole day. Even Kṛṣṇa was playing with His friends. Mother Yaśodā had to call Him thrice, four times, then He would come back. So that is the nature of children—they want to play whole day and night. But that is not preya, er, that is not śreya. The mother, the parents, take care, "My dear boy, come here, take your bath, change your dress, take your food. It is already late." So he does not know that these things are śreya. He wants to play. Just try to understand śreya and preya. Preya means according to one's position, there are different subject matter of sense gratification. That is called preya. And śreya means for future goodness. Ultimate good. That is called preya, er, śreya. Therefore a human being is he who is inquisitive about his ultimate goal of life, to know "How, what is my ultimate goal of life?" That is human being. So jijñāsu.
So when a human becomes jijñāsu, inquisitive, śreya uttamam... Śreya means ultimate goal of life, and uttamam... Uttamam. Tama means darkness. Tama means darkness. Not in the darkness, but uttamam. Udgata-tamaṁ yasmāt. When he transcends this darkness field of activities... Tamasi mā jyotir gama: "Don't remain in the darkness activities. Come to the light activities." So when one becomes inquisitive for the light activity, he is human being. He's called jñānī. The karmīs, they are in darkness. Their activity has no meaning. The other day we have discussed, vyartha-karmabhiḥ. Vyartha-karmabhiḥ. Vyartha means futile, useless. The karmīs, they are thinking very busy. If you go to see a karmī, he will say, "Oh, I have no time." "What you are doing, sir?" "No, I am very busy. I am earning money." So... But śāstra says, "You are simply wasting your time." Vyartha-karmabhiḥ. Vyartha-karmabhiḥ. The karmīs, they are working simply for useless result. How useless result? Because you have to change your body. Tathā dehāntara-prāptiḥ (BG 2.13). That is a fact. You believe or not believe, you are changing your body every moment. So simply you have no eyes to see, you have no brain to understand. You may be... Because you are cat and dog, you cannot understand. Because the cats and dogs, they cannot understand that there is another life after this dog's body and cat's body. They cannot understand. So anyone who cannot understand the simple truth of the transmigration of the soul, he is no better than this cat and dog.