Pure love for Krishna is devoid of knowledge (gnana) and austerity (vairagya). Residents of Vrindavan do not possess vedantic knowledge and or practice austerities. Pure love for God transcends all that. It is the final destination. It is compared to a boatman who uses his boat and oar to cross the river to get to land on the other side. But once he reaches land, he abandons the boat and oar for there is no need for them. However, if he chooses to carry, then the boat and oar becomes a burden.
Similarly in the realm of pure love of God, knowledge and austerity is like the boat and oar, it is used to cross the river (Viraja) from material shores to spiritual (Vaikunta). Once we reach Vaikunta shore, we give up the boat of knowledge and oar of austerity and simply engage in loving devotional service to the Lord. Otherwise knowledge and austerity will become a burden and drag us back to the material shores. This burden is felt as pride and anxiety especially when our knowledge is questioned and austerity tested. Sometimes i feel the burden!