Based on Bhagavad Gita Chapter 04, Text 09
The Bhagavad-gita (04.09) states that those who know in truth the divine birth and activities of Krishna become liberated and return to his eternal abode.
On reading the promise of this extraordinary result, we may naturally get the question: “I and millions of people like me already know Krishna. Will all of us be liberated?”
Yes, answers Gita wisdom, provided we know him in truth. The verse indicates that we need to not just know but also understand Krishna, as is conveyed through its use of a significant phrase vettitattvatah (know in truth). The principle of knowing in truth highlights the all-important difference between superficial knowledge and substantial understanding.
We may know Krishna superficially, having heard about himthrough family tradition or entertainment media or pious gatherings. At this level, we often see him as a mythological or historical character, as a colorful part of our sacred cultural landscape.