They both had to Conceal, don't Feel, be the good girl you always have to be 😢 when stressed one makes flowers with 6 petals, one makes 6-sided snowflakes
I like what someone said also that their names originate from the same Hebrew Elisheba (Isabela is the Spanish/Italian form and Elsa is the German/Scandinavian form and Elizabeth is the English form - according to Google) and "Isa" is the Norse rune for ice! (thanks @200760)
There's a lot of things about Encanto that make me emotional, but by far, Casita is the character that made me cry. Casita loves its inhabitants, its family, as much as any of the human characters do. She helps them, often without being asked, plays with the children, shows off for the townsfolk, and even treats the kids how the adults might, such as knocking Camilo for misbehaving or worrying about Mirabel going into the places where it can't help. Casita has such a fun personality, she's such a genuinely enjoyable character in the movie, and adds so much to the film without ever having a single spoken line. She's so playful and kind and cares so much so deeply about a lot for a living house lol
When she's falling and breaking and literally coming down, Casitas only priority besides helping Mirabel get the candle is protecting the Madrigals from harm. It softens Camilo and Isabela's falls before throwing them all out and letting the damage come down in front of the door so they can't come back in. 100%, I believe that it purposely weakened the wall Bruno smashes through so he could escape, wanting every single Madrigal to be safe. She knows that Mirabel wants the candle for a good reason, but the moment she has it, Casita immediately rushes to shield Mirabel from harm. If things started to go south before Mirabel could grab the candle, there is no doubt that Casita would have forced her to leave it and thrown her out to protect her even if the complete loss of it meant that Casita really could never return. AND THEN, in its actual final moments, Casita fucking waves goodbye to Mirabel and the other Madrigals.
Casita falling apart doesn't just feel like a house coming down, you really are watching another living member of the Madrigal family crumble down to nothing but broken bricks and chips of plaster. It feels so incredibly real and you get to panic for Casita as well as the Madrigals because you aren't just watching a house fall, you're watching another living being straight up die. She not only dies, but she uses the very last bit of her strength to say GOODBYE before she does and it makes me bawl my eyes out
God and when it comes back and she's so incredibly happy. She's singing! She's making music! She's pulling her family back inside as fast as it can and celebrating alongside them!! It missed them. Casita even sets up the photo to be taken and includes itself in it!! She's so fucking happy to be back and for everyone to be home and it's so CUTE, Casita is so precious to me
I love all of the Madrigals, but Casita is definitely my absolute favorite of them all. She's one of the best living object characters I've ever seen. She was created to protect the Madrigal family and does everything in her power to do so, no matter how big or small the danger might be
Dolores "I cannot keep my cousin Mirabel's secret for even a minute but if tio Bruno wants to live in the walls for ten years then that is HIS business" Madrigal