In plain words
The poet, of Tirumāliruñcōlai: The lovely hill of the Lord of Śrī, who sends down the southward road [to the world of Yama] the deceitful who torment those who match the Lord in compassion and those who surpass him in it, is cool Māliruñcōlai, which turns his servants, who go there at all times to worship, away from the road through that wilderness of sins.