Whatever our destiny is, whatever our Karma is, if we simply accept the mercy of Guru, "Guru Kripa", it can completely liberate us from all of our previous Karmic bondage.
Unless we hear very strictly with great faith to the order of our Spiritual Master, we will not understand what is the mercy of Krishna and how it is coming upon us.
If we actually want spiritual advancement, we have to be willing to perform tapasya to attract the attention of God to show Him we are serious, to show Him that we are depending on His causeless mercy.
If we are not begging for mercy we are not going to get it
When one attains the mercy of bhakti devi, gyan and vairagya automatically comes to him. Further, mukti becomes a servant of that devotee.
Revealed Knowledge is given by the mercy of the Lord to the sincere souls.