Siddhānta boliyā citte nā kara alasa (CC Adi 2.117). You have to understand the science of Kṛṣṇa. There are so many books. The Gosvāmīs were doing that. In the next verse . . . I have explained one verse. The next verse is nānā-śāstra-vicāraṇaika-nipuṇau (Śrī Ṣaḍ Gosvāmy Aṣṭaka 2). They were very much expert in studying very scrutinizingly all Vedic literatures. So, of course, reading or hearing. You may not have time to read, but try to read. If you have no time, you are hearing. We are publishing, we are publishing literature, books. I am trying to speak to you. That is also understanding, studying Kṛṣṇa science. Rather, hearing is better reception.
If you hear . . . that Vedas are therefore known as śruti. Śruti means it is received through hearing. Real process is hearing. And this age, Kali-yuga, people cannot study so much. Just like Caitanya Mahāprabhu, when He was called by Prakāśānanda Sarasvatī, He presented Himself that, "What can I understand, Vedānta-sūtra? I am a fool. Therefore My spiritual master has ordered Me to simply chant."
So this chanting will help you. Yasya deve para bhaktir yatha deve tatha gurau (Śvetāśvatara Upaniṣad 6.23). Simply by studying, becoming bookworm, you cannot advance. The real secret is—that is stated in the Vedas—unflinching faith in God and spiritual master. Then things will be revealed from within. How much strength we have got to study all these books? But Vedas says, yasya deve parā bhaktir yathā deve tathā gurau: if one has got unflinching faith in God and similar faith in the spiritual master, tasyaite kathitā hy arthaḥ prakāśante mahātmanaḥ, to him only the Vedic knowledge becomes revealed.