In plain words
The poet, of Tirukkōṭṭiyūr: Red-eyed Māl took into his service Celvaṉ [Celva Nampi, a devotee], gentle in nature, unswerving in right conduct, lofty in his pride of devotion and clearer in mind day by day; in the land where those live who sing the virtues of Gōvinda, who dwells gladly at Tirukkōṭṭiyūr, not even the rākṣasas can seize the grain that grows.