The secret? A little fraction of mercy of the Supreme.
This is the secret. Yasya deve parā bhaktir yathā deve tathā gurau [ŚU 6.23]. If one has staunch faith in the Supreme Personality of Godhead and as much faith in the guru, yathā deve tathā gurau, then the revealed scriptures become manifest. It is not the education. It is not the scholarship. It is faith in Kṛṣṇa and guru. Therefore Caitanya-caritāmṛta-kar says, guru-kṛṣṇa-kṛpāya pāya bhakti-latā-bīja [Cc. Madhya 19.151]. Not by education; not by scholarship. Never says. Caitanya Mahāprabhu says, guru-kṛṣṇa-kṛpāya, by the mercy of guru, by the mercy of Kṛṣṇa. It is a question of mercy. It is not the question of scholarship or opulence or richness. No. The whole bhakti-mārga depends on the mercy of the Lord. So we have to seek the mercy. Athāpi te deva padāmbuja-dvaya-prasāda-leśānugṛhīta eva hi, jānāti tattvam… [SB 10.14.29]. Prasāda-leśa. Leśa means fraction. One who has received a little fraction of mercy of the Supreme, he can understand. Others, na cānya eko ‘pi ciraṁ vicinvan. Others, they may go on speculating for millions of years, it is not possible to understand.