pēṟu onṟum mun aṟiyēn – Before this divine revelation, I was unaware of any benefit as sublime as this.
peṟṟu aṟiyēn – I was bereft of this knowledge due to my own ignorance. Such a benefit would have been known to those who were aware of its existence. Alas, I was not even aware of its existence.
āzhvār elucidates the reason for his ignorance and the consequent