idaṁ tu te guhyatamaṁ
pravakṣyāmy anasūyave
jñānaṁ vijñāna-sahitaṁ
yaj jñātvā mokṣyase 'śubhāt
śrī bhagavan uvāca-the Supreme Personality of Godhead said; idam-this; tu-but; te-unto you; guhyatamam-most confidential; pravakṣyāmi-I am speaking; anasūyave-to the nonenvious; jñānam-knowledge; vijñāna-realized knowledge; sahitam-with; yat-which; jñātvā-knowing; mokṣyase-be released; aśubhāt-from this miserable material existence.
The Supreme Lord said: My dear Arjuna, because you are never envious of Me, I shall impart to you this most secret wisdom, knowing which you shall be relieved of the miseries of material existence.
As a devotee hears more and more about the Supreme Lord, he becomes enlightened. This hearing process is recommended in the Śrīmad-Bhāgavatam: "The messages of the Supreme Personality of Godhead are full of potencies, and these potencies can be realized if topics regarding the Supreme Godhead are discussed amongst devotees. This cannot be achieved by the association of mental speculators or academic scholars, for it is realized knowledge."