Naraku learning Kagome is Kikyo's reincarnation

I just rewatched the episode (episode 30, Tetsusaiga Is Stolen! Showdown At Naraku's Castle) where he learns about Kagome being Kikyo's reincarnation and realized I TOTALLY forgot about this.

When Kagome fires her arrows Naraku recognizes her power as Kikyo's. He didn't seem to know this before hand and it's actually so interesting to me... For several reasons.

One, he's obsessed with Kikyo but doesn't see Kikyo in Kagome even tho most people immediately note them as twins.

And two- this is followed up soon after by him meeting Kikyo who's been resurrected and like- the whiplash he must've been getting lmao. He just accepted that she was reincarnated and then she shows up again, alive even if by resurrection.