Srimathe Ramanujaya Namaha

Azhwars, who are said to be the Hamsam of Sriman Narayanan, have dedicated their lives towards the Emperumaan and they led their life by praising and doing Mangalasasanam on Sriman Naryanan. These Azhwars were born in various parts of our country but they were all united in a common subject, ie dedicating their lives and praising the Lord.
The term Acharya means one-who-teaches-by-example. Acharyas, have interpreted and explained the teachings of the scriptures in harmony with the teachings of the previous Acharyas in the lineage (Sampradaya). They have also given us new commentaries (bhashyas) on the Scriptures that are backed up with copious quotations from previous Acharyas to prove that the present rendering is true, in spirit, to the original.