The scene and the discipline of her pose do more to suggest that she has placed the blindfold on herself, as is done in many cultures, ritualistically, to encourage reliance on the other senses (for example the use of blindfolds in martial arts).
Her pose and environment imply that she has willingly covered her eyes with a blindfold, an action practiced ritually across many societies to heighten awareness through other senses (like using blindfolds during martial arts training).