Richness of knowledge is required, jñānam, and vairāgya. Vairāgya required, because we have been entangled in this materialistic way of life. Bhūtvā bhūtvā pralīyate (BG 8.19). Tathā dehāntara-prāptiḥ (BG 2.13). Another life, another body. I do not know what kind of body. Then another chapter. In this way our life is going on. Therefore we must have detachment from this materialistic way of life, changing one body to . . . but people are so ignorant, they do not take it very seriously. They think, "Let us go on. Eh, we don't mind. Whatever happens, happens." That is not required. You must have knowledge. This knowledge is imparted from the very beginning of Bhagavad-gītā. Aśocyān anvaśocas tvaṁ prajñā-vādāṁś ca bhāṣase (BG 2.11). People are talking very, very big, big talks, but all around this body. All around this body. Aśocyān. Gatāsūn agatāsūṁś ca nānuśocanti paṇḍitāḥ. About this body nobody is very serious if he is a paṇḍita. If he is a fool, rascal, then he is simply involved in the bodily problems. So that is called jñāna.
But this jñāna can be achieved very easily. How? How it is easily? That is also said in the Bhagavad-gītā. Teṣāṁ nityābhiyuktānām . . . ah, no . . .
- teṣāṁ satata-yuktānāṁ
- bhajatāṁ prīti-pūrvakam
- dadāmi buddhi-yogaṁ taṁ
- yena mām upayānti te
- (BG 10.10)
If you engage yourself in the devotional service of the Supreme Personality of Godhead, Kṛṣṇa, Vāsudeva, then Vāsudeva, Kṛṣṇa, is within you. Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe arjuna tiṣṭhati (BG 18.61). He is already there. Not that you have to find out Vāsudeva from anywhere. Vāsudeva is everywhere. He is also within. Aṇḍāntara-stha-paramāṇu-cayāntara-stham (Bs. 5.35). Vāsudeva is within this universe, within your heart, or even within the atom. So Vāsudeva is every . . . simply you have to find out. So how you can find out? Teṣāṁ satata-yuktānāṁ bhajatāṁ prīti-pūrvakam (BG 10.10). As soon as you engage yourself in the service of Vāsudeva with love and faith—that is being taught in Kṛṣṇa consciousness, with love and faith—then Vāsudeva is already there. He knows what you are. You cannot cheat Him. When He understands that now you are serious about knowing, He says, dadāmi buddhi-yogaṁ tam: "I supply buddhi-yoga." Buddhi-yoga, that is yoga. The yoga, buddhi-yoga, means bhakti-yoga. Because it is said, dadāmi buddhi-yogaṁ taṁ yena mām upayānti te. This buddhi-yoga means "by which one can approach Me." And it is clearly explained in another . . . Eighteenth Chapter, bhaktyā mām abhijānāti (BG 18.55). Therefore buddhi-yoga means bhakti, or bhakti-yoga. Because without bhakti, you cannot understand Kṛṣṇa. And here Kṛṣṇa says: "I give him buddhi-yoga, intelligence, 'My dear devotee, you kindly do this. You will come to Me.' "