If Nibbana is characterized as “bliss”, how to understand the coherence of experience without a subject in the Nibbanasukha Sutta?

The Nibbanasukha Sutta presents Nibbāna as an experience of “bliss” > There he addressed the mendicants: “Reverends, extinguishment is > bliss! Extinguishment is bliss!” > > When he said this, Venerable Udāyī said to him, “But Reverend > Sāriputta, what’s blissful about it, since nothing is felt?” > > “The fact that nothing is felt is precisely what’s blissful about it. The question concerns how “experience” is to be understood in this context. If all five aggregates are relinquished and no residual locus of identification remains, in what precise sense can sukha or bliss be meaningfully predicated?