To see a nun in your dream signifies purity, chastity and obedience. It also indicates that you need to live up to the vows and promises you have made. Alternatively, material fortune and gain may be interfering with your spirituality. Consider also the pun of being “none” or “nothing”. A nun may also symbolise your sister or a female figure in your waking life.
If you are a woman and dream that you are a nun, then it indicates unhappiness with your current situation and environment. You are looking for an escape. Alternatively, the dream suggests that you are looking for a sense of security or calmness in your life.