The teachings of Bhagavad-gītā, how it has to be received, that is explained here. It is not to be understood by so-called scholarship. In the Vedic literature we find, nāyam ātmā pravacanena labhyo na medhayā na bahunā śrutena (Kaṭha Upaniṣad 1.2.23). If you're actually interested in ātma-jñāna, self-realization, then you cannot understand by your so-called academic education. No. Nāyam ātmā pravacanena . . . or because you are a big speaker, you can speak very nicely, decorating language, therefore you have understood—that is also not possible. The spiritual knowledge has to be understood by the grace of the Supreme Spirit. Yam evaiṣa vṛṇute tena labhyaḥ (Kaṭha Upaniṣad 1.2.23). One who is favored by the Supreme . . . here Kṛṣṇa, the Supreme Being, God, He's explaining about Himself. So you have to learn about God, or Kṛṣṇa, from Kṛṣṇa, or through the paramparā. As Kṛṣṇa says, evaṁ paramparā.
Paramparā means Kṛṣṇa explained the knowledge, Vedic knowledge, to Lord Brahmā, ādi-kavaye. Janmādy asya yataḥ anvayāt itarataś ca artheṣu abhijñaḥ sva-rāṭ tene brahma hṛdā (SB 1.1.1). The spiritual knowledge, brahma, brahma-vidyā, śabda-brahma, the Vedic knowledge . . . just like in the Bhagavad-gītā, the words written in this book, Bhagavad-gītā, although it appears like ordinary letters, they are not like that. It is Vedic vibration. The things which are being spoken by Kṛṣṇa, they are not ordinary language.