To dream that you are in a shower, foretells that you will derive exquisite pleasure in the study of creation and the proper placing of selfish pleasures.
See also: Rain
To see a shower curtain in your dream indicates that you are not fully expressing your emotions. There is something that you are still hiding from others. Alternatively, the dream suggests that you are trying to protect those around you from your personal setbacks and emotional outbursts.
To see a dirty or moldy shower curtain in your dream represents negative emotions that you are repressing. You feel ashamed about your own feelings.
To dream that you are wearing a shower cap suggests that you are trying to shield yourself from some emotional situation. You are trying to remain rational and objective by separating your emotions.