mercifully lived manifesting his cool mercy —

 swarms of beetles —

 beetles —

coolness (attribute of water) —

the strength (given by those dhĕvathās) —

for the favour of protecting —

being benefactor for all entities/objects —

mercifully protecting —

one who protects the souls —

(while helping others) there is none greater than him in giving (himself) —

 will grant; —

 mercifully gave (them) —

fulfilling their desires —

protecting —

protection —

one who protects —

looking at the affectionate male monkey —

emperumān gave such meanings through ṣrī gīthā and helped the people; —

and pour outside —

having their creation and annihilation at his full disposal —