A strict logician, Nampillai wrote the (literally "This" – meaning "This is the final word"). The Idu commentary on Tiruvaymozhi is famously dense. A student once complained that Idu was too hard. Nampillai replied, "The disease of rebirth is hard; medicine must be equally strong."
Living slightly later, Nayanar was a brilliant logician. His commentary is known for its (logical rigor). He often addresses potential objections ( purva paksha ) from rival schools (Advaita or Buddhism) and systematically refutes them using Prabandham verses. His style is more scholastic than emotional, serving as the perfect intellectual defense of the Dravida Veda . nalayira divya prabandham vyakyanam