Sometimes we want something immediately by worshiping these demigod. Just like it is mentioned that if it wants . . . if one aims to . . . wants to be free from diseases, he has to worship the sun-god. If one has to become very beautiful or he wants a beautiful wife, then he has to worship Umā. Similarly, there are different gods' names in the Vedic literatures, and they become successful. That is not unreal. By worshiping those different demigods for particular purpose, they become successful. That is a fact.
But in another place you will find in the Bhagavad-gītā that it is said, I mean to say, kāmais tais tair hṛta-jñānāḥ yajanty anya-devatāḥ (BG 7.20). Kāmais tais tair hṛta-jñānāḥ: "Those who are misguided by material desires, they take the shelter of other demigods." One goes to the worship of demigods because one is persuaded for a particular purpose. Just like one who wants to be very healthy man or to be free from all diseases, he worships the sun-god. Or one who wants to be . . . to have a beautiful wife or becomes himself a very beautiful human, he worships the devī Umā.
But one who is convinced, one who is convinced that, "I am not this body . . ." This is the thing, "I am not this body." The material wants means bodily demands. Then he does not go to all these demigods. He takes at once shelter of the Supreme Lord. Jñānavān. Jñānavān, who has understood the problems of life. Jñānavān. Jñāna means who has understood the spiritual nature of the living being, he is called jñānavān. So jñānavān. Bahūnāṁ janmanām ante jñānavān māṁ prapadyate (BG 7.19).