To dream of a paper bag indicates that there is undisclosed information in your waking life. Either you or another person may be withholding this important piece of information.

To dream of a wet, dirty, or crumpled paper bag suggests the potential for an idea or project to go bad due to dishonesty.

A paper bag blowing in the wind is a message from your unconscious to lay all your cards on the table and to avoid denial over the undesirable situations.