If you accept . . . that method is recommended here, yogaṁ yuñjan mad-āśrayaḥ: "You have to practice this yoga system under the shelter of Me." "Me" means . . . just like the same example, a business firm signs "we." "We agree to this point." The manager signs, the proprietor signs, he says "we," means "We, the company, any one of us." Similarly, when Kṛṣṇa says mad-āśrayaḥ, "under My shelter," it means that taking shelter of Kṛṣṇa or anyone in the disciplic succession of Kṛṣṇa. The same example: anyone attached to that business transaction, he's as good as the proprietor or the manager.
So Kṛṣṇa says, jñānaṁ te 'haṁ sa-vijñānam . . . the yoga system . . . yoga system is a type of knowledge. Jñānam. Jñānam means knowledge. Jñānaṁ te 'haṁ sa-vijñānam idaṁ vakṣyāmy aśeṣataḥ (BG 7.2): "I'm just trying to explain the knowledge, or the devotional knowledge, or the yoga system, by which you can understand Me perfectly. That I am speaking to you in full knowledge," jñānam, and sa-vijñānam, "with scientific knowledge." Not that bogus knowledge. Sa-vijñānam. Vijñānam means science. With scientific knowledge.
Now, modern days, people are advanced. They like to talk on scientific basis. And here is the Kṛṣṇa's statement: sa-vijñānam, "with scientific knowledge." Vakṣyāmy aśeṣataḥ: "And I shall explain," aśeṣataḥ, "in full explanation, without any reservation." Not that summarily I say something, you do not follow, you do not understand; I finish. No. "I shall fully explain," aśeṣataḥ. Yaj jñātvā, "
And if you fortunately can understand," yaj jñātvā neha bhūyo 'nyaj jñātavyam avaśiṣyate, "if you understand this science, then you finish your process of acquiring knowledge." Every one of us acquiring knowledge. That is called experience, one after another. So Kṛṣṇa says that "If you understand this science," sa-vijñānam, "then your knowledge will be complete. You have nothing to hanker after any further knowledge. Knowledge is complete."
That is also Vedic injunction. Yasmin vijñāte sarvam idaṁ vijñātaṁ bhavati (Muṇḍaka Upaniṣad 1.3). Yasmin vijñāte, if you can understand the supreme knowledge, the Supreme, then sarvam idaṁ vijñātaṁ bhavati, everything becomes known to you. Just like in arithmetic, if you simply learn 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, then you learned all the arithmetic process. Because in the arithmetic there is nothing but 1, 2, 3, 4, 5, 6 . . . that's all. Whatever you see, big, big calculation, that is 1, 2, 3, 4, 5, 6, 7, 8, 9 . . . that's all. Similarly, if you simply understand Kṛṣṇa, then you'll see the whole arithmetic, whole world, whole universe is full of Kṛṣṇa consciousness. That's all.
Therefore in the Bhagavad-gītā you'll see that bahūnāṁ janmanām ante jñānavān māṁ prapadyate (BG 7.19). When actually one becomes wise, full of wisdom, jñānavān . . . how? After many, many births of speculation and calculation, when he actually becomes . . . just like the same example. A very expert mathematician, he sees the whole mathematic, arithmetic, is full of 1, 2, 3, 4, 5, 6 . . . that's all.