only way to get real knowledge

 
The formless Brahman conception, however, can be received only by aural reception and not by personal experience. Knowledge is therefore acquired by aural reception.
In this verse it is clearly said that those who are averse to the Supreme Personality of Godhead speculate with their imperfect senses about the nature of the Absolute Truth. The formless Brahman conception, however, can be received only by aural reception and not by personal experience. Knowledge is therefore acquired by aural reception. It is confirmed in the Vedanta-sūtra, sastra-yonitvat: one has to acquire pure knowledge from the authorized scriptures. So-called speculative arguments about the Absolute Truth are therefore useless. The actual identity of the living entity is his consciousness, which is always present while the living entity is awake, dreaming, or in deep sleep. Even in deep sleep, he can perceive by consciousness whether he is happy or distressed. Thus when consciousness is displayed through the medium of the subtle and gross material bodies, it is covered, but when the consciousness is purified, in Krsna consciousness, one becomes free from the entanglement of repeated birth and death.    (More...)

Link to this page: https://prabhupadabooks.com/?qg=1039