In plain words
Amutaṉār: The weapon called the discus in the hand of the husband of the Lady who blooms in the leafy lotus, and with it Nandaka the sword, the mace that ranges far [to protect], the bright bow Śārṅga and the broad conch that spirals to the right, came to be at the side of Rāmānuja the sage here on this earth, to guard this world.