I'm not sure if I'm wrong here, but could the glass-house be a sort of metaphor for the mind? It just seems like Ani's hiding inside her head, which, when people start pounding on your emotional barriers, can be like chucking stones at a pane of glass... She could be protecting herself from what's going on in her life at that time, and the "ghost" is somebody involved at the time - friend/ lover/ parent/ public opinion even? For now she's staying in the relative safety of her mental walls, even though it is "glass" - implying people know she's holding back... i dunno, just a thought.
I'm not sure if I'm wrong here, but could the glass-house be a sort of metaphor for the mind? It just seems like Ani's hiding inside her head, which, when people start pounding on your emotional barriers, can be like chucking stones at a pane of glass... She could be protecting herself from what's going on in her life at that time, and the "ghost" is somebody involved at the time - friend/ lover/ parent/ public opinion even? For now she's staying in the relative safety of her mental walls, even though it is "glass" - implying people know she's holding back... i dunno, just a thought.