eLidhil iraNdadiyum kANbadhaRku en uLLam
theLiyath theLindhozhiyum sevvE - kaLiyil
porundhAdhavanaip poral uRRu ariyAy
irundhAn thirunAmam eN 

Meaning:

en uLLam 			- O! my mind
theLiya 			- if you are clear (in thought)
kANbadhaRku 			- to worship
eLidhil 			- easily
iraNdu adiyum 			- His divine feet
sevvE theLindhozhiyum 		- He too will become glad (to make it happen);
eN 				- think
thirunAmam 			- the divine names
irundhAn 			- of He who descended
ariyAy 				- as Narasimha
poral uRRu 			- having decided to fight
porundhAdhavanai 		- (Hiranya) who did not seek Him
kaLiyil 			- due to his pride.

Vyakhyana Saram:
When Prahlada said his divine nama, He removed his obstacles and gave Himself to him. Azhvar advises his mind that He would do the same for him too.