It is to arouse discrimination of supreme purusa alone that the (anatomical) narrative of the Puranas is formulated in the first place. The entire Purana—its every chapter and verse—is designed with this ultimate objective of awakening discrimination in the mind of the (intelligent) reader.
The Puranic narrative is thus a strategy to make the reader realize the sole entity of worship, the sole object of refuge. The intelligent reader will not fail to observe that, among all the entities, it is only Hari that is emerging as supreme; and he will understand that this only is the most powerful entity, worthy of sole-refuge. It is this conclusion that is directly expressed by Sankaradeva and Madhavadeva, in their own works, in the form of upadesas and in chapters such as “The Determination of the Supreme Entity Worthy of Adoration” (Bhakti Ratnakara).
The objective of the author of the Bhagavata—and this ought also to be the objective of the inquisitive and critical reader—is to determine the supreme entity among all the entities, who alone is eligible for worship. In the Bhagavata, the reader has to know this entity by reading intelligently through the passages and piercing the dialogic strategy with the power of his intellect. But in Sankaradeva and Madhavadeva, this meaning is directly expressed.