When our senses are imperfect, and we are thus prone to illusion, and we make many mistakes, and in a cheating mentality stubbornly claim to be perfect, how can we know anything for certain? We can’t. Are we destined then to remain in the illusory realm of relativity in which everyone takes their own subjective opinion as the so-called truth?
There is a way out of this quagmire. We can understand that Absolute Truth does exist because it is logically impossible to assert the non-existence of Absolute Truth. So how one who is captured by illusion can realize the Absolute Truth? He cannot do so on his own power. But by the power of the Absolute Truth it is possible to realize the Absolute Truth.
In the Bhagavad-gita it is clearly revealed that Krishna is the Absolute Truth:
param brahma param dhama
pavitram paramam bhavan
purusam sasvatam divyam
adi-devam ajam vibhum
ahus tvam rsayah sarve
devarsir naradas tatha
asito devalo vyasah
svayam caiva bravisi me
“Arjuna said: You are the Supreme Personality of Godhead, the ultimate abode, the purest, the Absolute Truth. You are the eternal, transcendental, original person, the unborn, the greatest. All the great sages such as Narada, Asita, Devala and Vyasa confirm this truth about You, and now You Yourself are declaring it to me.”