Srila Bhaktivinoda Thakura explains in his commentary on Sarnagati, in his final prayer about the holy name, that the holy name will ultimately bring us back to the spiritual world. Krishna will then keep us by His side and reveal our eternal relationship with Him. When we actually have our relationship with Krishna revealed to us in the spiritual realm, we will understand the holy name’s true sweetness, because we will see everything present in the holy name— including our own relationship with Krishna.
(LFD, Vol2, Chanting Purely, Pg 109, 1st paragraph)