Where did Alvars and Nayanars get the ideals of love and the concept of heroism from?

Ans. Alvars and Nayanars got the ideals of love and heroism from the Sangam literature composed during the early centuries of the Common Era and blended with the values of Bhakti. The Nayanars went from place to place composing songs and singing them and set them as music in major temples of the villages.