In plain words
The poet, to the servants of Yama: From now on, who will enter the gates of the seven hells? Do not be angry with me: bar them fast with the strong bolt. For the land ringed by the beautiful nāval [Jambūdvīpa] has learned well the way to see the ringing anklet feet of him whose shoulders flung the calf [the demon in calf form] so that the fruit [the demon in the wood-apple] fell.