In plain words
The authority of the śāstras is that Mokṣa means the granting of the state of immortality. When a drop of water is put into the ocean, it becomes immortal. It takes shape as the infinite. It comes about through the union of these three: immortality, deathlessness and infinity. If that same drop of water is kept in our hand a few moments, it turns to vapour and meets its death. When that drop of water is put into the sea, it reaches an infinite form. It takes shape as deathlessness. It turns into nectar itself. Such an immortal union is gained by us only through the principle of Prema. The whole form of a devotee who has gained the form of immortality takes shape as the form of Acyuta. It is the Gopīs who experienced such immortality, drank of Ānanda and lived the divine in their lives.
A fish cannot stay even a moment out of water. If it leaves that water, its life does not stay. In the same way, the devotee's life enjoys happiness and peace only as long as he is in the ocean called the nectar of Bhakti. If he goes away from the nectar of Bhakti, his life becomes empty. Truly, humanness that has experienced such a principle of Prema longs for no other life. In the Bhāgavatam too this is beautifully described. "Mandāra makaranda mādhuryamunu grōlu madhupambu vōvunē madanamulaku": that is, will the bee that has drunk the honey of the mandāra flower rush towards the thorn-apple flower! Will the swan that plays in the Ganges of the sky dive into mere muddy water? Will the cuckoo that feeds on mango shoots and sings sweetly stretch its neck towards the wild jasmine? Will the cakora bird that wheels slowly in the first shower of rain go running after blocks of ice? Will tamarind please a man who has eaten a lump of dates? In the same way, humanness that has drunk the honey of the mandāra will never long for or desire other persons, other matters or other things. In every limb of the devotee who has filled all his limbs with the nectar of Bhakti, the divine auspicious principle takes shape.