Sutra:
89. "uRRathum unnadiyArkkadimai" enkiRapadiyE, ithilE bhAgavatha sEshathvamum anuSanthEyam.

Meaning:
As said by Thirumangai Azhvar "kaNNapuraththuRai ammAnE! nin thiruvettezhuththum kaRRu nAn uRRathum unnadiyArkkadimai", this namaS not only removes obstacles, but it also contains the height of bhagavat sEshatvam which is bhAgavata sEshatvam.

Sri PBA Swami's Sarartha Deepikai:
Through the meaning of the namaS, one should also practice bhAgavata sEshatvam. Therefore it is explained here. Through this namaS which removes the ahankAra mamakArams completely and brings about bhagavat sEshatvam, one should also follow bhAgavata sEshatvam which is the height of bhagavat sEshatvam. Thirumangai Azhvar's pasuram from Periya Thirumozhi is the measure that shows that.

maRRumOr dheyvamuLathenRiruppArOdu
uRRilEn uRRathumunnadiyArkkadimai
maRRellAm pEsilum ninthiruvettezhuththum
kaRRu nAn kaNNapuraththuRaiyammAnE (8-10-3)