What was Madeline thinking and felling when she awakes in her casket?

When Madeline awakens in her casket, she likely experiences a profound mix of confusion and terror as she grApples with the realization of her premature burial. The darkness and isolation of the casket could instill a sense of panic, while the awareness of her own mortality may evoke feelings of desperation and a longing for life. Additionally, there might be a flicker of hope intertwined with her fear, as she contemplates the possibility of escape and reunion with the living. Overall, her awakening is a haunting moment filled with dread and an instinctual fight for survival.