Theory: Glinda’s Bubble Represents

My theory is Glindas bubble is a representation of her world view. Ariana Grande put in her caption that Glindas bubble is like a “home away from home. A protective shell, a quiet safe place for all her secrets and truths.” We see her framed in bubbles every so often. For example in What is this feeling. Here we see Glinda is still pretty “small minded”. Her perception of what is good and about the people around her is still pretty small. She can be described as a bit self centered and has a pretty narrow world view. However this leaked picture from act 2 shows her framed in a bubble however it is now bigger. This possibly represents that her world view has expanded now that she has met Elphaba and opened her perception of the world around her. However she remains trapped within the confines of things such as Oz and the Wizard, still holding on to selfishness as this is also around Thank Goodness where she is being celebrated as “Glinda the Good” while Elphaba is being painted as wicked and she is complicit in that.