This nice song was sung by Narottama dāsa Ṭhākura, one of the great ācāryas of the Gauḍīya Vaiṣṇava sampradāya. That is the sect of Vaiṣṇavism started by Lord Caitanya Mahāprabhu. "Gauḍīya" means belonging to Bengal. There are five Gauḍa-deśa in the northern part of India, out of which part of Bengal, West Bengal, is called Gauḍa-deśa. So Narottama dāsa Ṭhākura's songs are very appropriate just to the conclusion of Vedic injunctions. So he sings this song, how one can rise up to the transcendental plane for associating directly with Rādhā and Kṛṣṇa, what is that process.
The process is one should begin this Kṛṣṇa consciousness under the mercy of Lord Caitanya. Śrī Caitanya Mahāprabhu is Kṛṣṇa Himself, and He is teaching people how to become Kṛṣṇa conscious. Lord Kṛṣṇa, He (break) personally spoke about Himself in the Bhagavad-gītā, but people who are not very intelligent, who are described in the Bhagavad-gītā as mūḍha—mūḍha means rascal—and duṣkṛtina, and miscreant—and narādhama (break) narādhama means lowest of the mankind—such persons cannot understand Kṛṣṇa. But still, Kṛṣṇa was so merciful that in order to claim all these people, means the lowest of the mankind, miscreant, and fools and rascals, rejected, so He came in the form of Lord Caitanya to reclaim them.