Love That Is Immortal in Essence
The supreme love Narada describes is amrita-svarupa — immortal in its very nature, untouched by decay or death.
Narada teaches in Sutra 3 that this love is 'amrita-svarupa cha' — of the nature of nectar, of immortality itself. Whereas worldly loves are conditioned by time and end in loss, divine love partakes of the deathless reality it loves. The devotee who tastes even a drop of this nectar is transformed, for the object of the love is eternal and the love takes on that same eternity. Narada implies that to love God truly is already to participate in immortality, since love unites the lover with the nature of the beloved. This insight anticipates the mystical principle, found across traditions, that 'we become what we love' — that the heart's deepest attachment shapes the soul's ultimate destiny.
And it is of the nature of immortality.
Scholars of comparative mysticism connect this 'nectar of immortality' with the Sufi concept of baqa (subsistence in God), where the lover's perishable self is replaced by the imperishable life of the Beloved.
Narada Bhakti Sutras