It is described in Bhakti Rasamrita Sindhu by Srila Rupa Goswami that devotional service is the only means to attract Krishna.
Krishna is all-attractive, but pure devotional service attracts even Him. This means that pure devotional service is even transcendentally stronger than Krishna Himself, because it entices Him. Similarly, a pure devotee who possesses that pure devotion for Krishna is also considered to be in a higher position than the Supreme Lord by the Lord Himself.
dharaṇīdhara prabhu śeṣa anantā
śrīguru, bhakti, bhakta, bhagavantā
Since Nitai is the embodiment of pure devotional service and the topmost pure devotee, His transcendental position is doubly potent.