That's actually what it wanted to share... The perfect things we yearn are perfect just because we don't have it, don't know them. They are just romantic dreams, but they give us hope... And hope make us beautiful.
Yes, exactly! And as the Great Exhibition was sort of racist and exploitative at its core (underneath all the romanticization) so it works well with this story because like, the perfect things we yearn for may not be the idyllic dreams we think they are--sometimes they're just banal, or an illusion, and we ignore how messed up it might be in reality.
I found it strange at first that a romanticization of London's Crystal Palace was the conceit, given that the Great Exhibition was more a gross manifestation of imperialism and colonization than anything... but then I was like oh wait this works because this story is fucked up too. Dang.