tad viddhi praṇipātena | paripraśnena sevayā
upadekṣyanti te jñānaṁ | jñāninas tattva-darśinaḥ

Just try to learn the truth by approaching a spiritual master. Inquire from him submissively and render service unto him. The self-realized souls can impart knowledge unto you because they have seen the truth. (Bhagavad-Gita 4.34)