Pills are sus AF, to me it's obvious they are blocking her power and maybe even keeping her physically weak. When she wasn't taking them it was probably withdrawal symptoms or her power coming back and all... Idk why the temple is doing that, maybe they want to have "one true saintess" under their control and the rarity of her power would make it more valuable? That's my best guess
I just wish she would come clean to the prince... He clearly appreciate her a lot, the truth is much better than the misunderstandings that keep happening. Oh and Letio looks like he's gonna go all obsessed psychotic and he's kinda scary but I feel good about it because it means the prince
(LOVE his sweet ass) is endgame