There is so much realization in the pages of the Bhagavatam given by great saintly sages and rishis. There is deep refined wisdom in the pages of Bhagavad Gita spoken directly by the Supreme Being Sri Krishna. There is so much evidence around us in our immediate vicinity and far away to ascertain the truths as enunciated by these saintly scriptures. Yet, we are convinced we can be happy here and that Bhagavad Gita and Bhagavatam is for dry philosophers that which is not practical in this day and age!
So while there is ‘raja vidya’, king of knowledge accessible by the mercy of Srila Prabhupada, that king of knowledge is rendered ‘raja guhyam’, king of secrets. Why - because we do not see the futility of material life. Therefore, unless we deeply realize from the core of our heart the futility of this world, we will not truly take full shelter of the ‘raja vidya’ and till we take shelter, this will remain ‘guhyam’ or secret and rendered dry philosophy from our vantage point!