From a clear knowledge of the Bhagavad-gita all the goals of human existence become fulfilled. Bhagavad-gita is the manifest quintessence of all the teachings of the Vedic scriptures.
The goal of mankind is knowledge ... Now this knowledge is inherent in man. No knowledge comes from outside: it is all inside. What we say a man 'knows', should, in strict psychological language, be what he 'discovers' or 'unveils'; what man 'learns' is really what he discovers by taking the cover off his own soul, which is a mine of infinite knowledge.
Life seems to be a process of replacing one anxiety with another and substituting one desire for another--which is not to say that we should never strive to overcome any of our anxieties or fulfil any of our desires, but rather to suggest that we should perhaps build into our strivings an awareness of the way our goals promise us a respite and a resolution that they cannot, by definition, deliver.
By deceiving one another through false assumptions and misrepresentations there has been, in reality, a great lapse and delay in achieving the real goals.