Highlights from Nampiḷḷai's Vyākhyānam as Documented by Vadakkuth Thiruvīdhip Piḷḷai
niṛutthi - It is the solemn responsibility of the meditator to establish the validity of the one upon whom meditation is focused. They [other devatās] remain acknowledged only because of these devotees worshipping them.
num uḷḷattuk koḷḷum devaṅgaḷ - Devatās who are enshrined