In plain words
The poet, singing Rāma of Kaṇṇapuram to sleep: O you who were born of the lovely womb of Kausalyā of lasting fame! O you who scattered the heads of the king [Rāvaṇa] of southern Laṅkā! My dark gem of Kaṇṇapuram, ringed on every side by great, fine walls of red gold that have never been breached! My own sweet nectar! Rāghava, tālēlō.