Mission and Secrets
Both Aelina and Elder Sandra were momentarily stunned by Mira's answer. They would never have thought Mira would so readily tie herself to the Sect. A Sect that she's spent very little time a part of.
They would understand if maybe she's spent most of her life here and this is her way of repaying the Sect, but that clearly wasn't the case here.
Nonetheless, Aelina smiled, "It seems you're also quite the decisive person. I figured it'd take more to convince you, but this is a pleasant surprise."