Thank you so much! And yeah, you're absolutely correct!
- Mild-ish Spoilers, I tried to be vague -
Something I think was actually pretty instructive in that read is actually Avelina's actions the end where it's like... despite this 'thing' that's tarnished so much of her 'belongings', rather than disposing of it in a more normal fashion ie: ridding herself of it, her ultimate desire/decision is to actually just entrench it further in her control by discarding it in the mirror prison? More as if trying to punish Agnes for acting against her by confiscating a toy that she would mush rather keep to herself anyways. Avelina doesn't want to let go of Cecily any more than Agnes does, because she needs someone to gaze and worship her in a way Agnes won't or can't? She sucks, I hate her so much, thank you so much for enjoying our work and saying such kind words, aaaaaa