In the glass castle explain mom’s comment at the bottom of page 129

Rose-Mary is saying to enjoy the things around you

Explanation:

She tells Jeannette this so she knows why she's so careless. There is a deeper meaning to life than what people say/think about you.

Esperanza describes how her family came to live at the house on Mango Street. She, her parents, her brothers, Carlos and Kiki, and her sister, Nenny, moved to Mango Street when the pipes broke in their previous apartment and the landlord refused to fix them. Before they moved into the house on Mango Street, the family moved around a lot. The family had dreamed of a white house with lots of space and bathrooms, but the house on Mango Street has only one bedroom and one bathroom. Esperanza notes that this is not the house that she envisioned, and although her parents tell her it’s only temporary, she doubts they’ll move anytime soon. The house, however, does have some significant advantages over the family’s previous apartments. The family owns this house, so they are no longer subject to the whims of landlords, and at the old apartment, a nun made Esperanza feel ashamed about where she lived. The house on Mango Street is an improvement, but it is still not the house that Esperanza wants to point out as hers.