They are finding the knowledge in the books and they are finding the practical application in the life One who is under the control of Kṛṣṇa, he’s no more under control of the mind. Those who are not under control of Kṛṣṇa, the mind dictates to him; he’s under the control of the mind
So jñāna means theoretical knowledge, and vijñāna means practical application.” Mr. He explained that control of the mind is essential because the mind is the cause of our material existence Unless you are expert in devotional service, by practical application of the instruction of Bhaktirasāmṛtasindhu
So this is the practical application in life of the education mentioned in the Srimad-Bhagavatam.