>>712757179
You can tell given how he wrote everything else with that Song of Ice and Fire approach that The Fingers are akin to The Sparrows type shit.

Their role as being some sort of religious authority and interpreter of god further proves this. It very likely was a Miyazacki moment to make them giant fingers because aside from the metaphysical implications like controlling the fate of empyrean and being indestructible without a weird god dagger/corpse, they could have easily been replaced by a bunch of cardinal like dudes and the plot would still work.