Pradyumna: "There are many other theories, but all these different speculations are at once cleared off as soon as Śrī Kṛṣṇa is realized in truth by the process of bhakti-yoga. Śrī Kṛṣṇa is like the sun, and the materialistic speculations about the Absolute Truth are like the darkest midnight. As soon as the Kṛṣṇa sun is arisen within one's heart, the darkness of materialistic speculations about the Absolute Truth and the living beings is at once cleared off."
"In the presence of the sun, the darkness cannot stand, and the relative truths that were hidden within the dense darkness of ignorance become clearly manifested by the mercy of Kṛṣṇa, who is residing in everyone's heart as the Supersoul. In the Bhagavad-gītā (BG 10.11), the Lord says that in order to show special favor to His pure devotees, He personally eradicates the dense darkness of all misgivings by switching on the light of pure knowledge within the heart of a devotee."
Prabhupāda: This is another advantage of the devotee. Because Kṛṣṇa shows a special favor to the devotee. Although He's equal to everyone, He's specially, I mean, inclined, favorable to the devotees. Teṣām eva anukampārtham aham ajñāna-jaṁ tamaḥ. There . . . He takes special care. He says, samo 'haṁ sarva-bhūteṣu (BG 9.29). Although He's equal to everyone, still He's specially inclined to the devotees. For the devotees, he gives special instruction from within. Yena mām upayānti te. This is the special advantage of a devotee.