" The voice startled me . It shook me so bad that my hands were trembling , and the bubble of expectation that had been in my chest expanded , filling my throat . I looked up into the whiteness , both terrified and anxious . She was standing with her hands on her hips , hair shimmering around her shoulders like a golden halo .

Answer the following question: What may be the reason for the subject unnerving the narrator ?
The narrator feels that the subject is a celestial being .