Psychologically: It depends on whether one escapes from her or goes in to her - always, however, she stands probably for secret thoughts and/or actions. This can be understood of course also sexually. Who keeps open, e.g., with pleasure 'a little back door' to himself, also knows one more way out (or an access) if other stand already 'before close doors'. One can take it literally. Popular: (European ones).: use instead of the front entrance: if a warning of change of the talent is, - according to the state of affairs, it can mean a change to the good or bad. (See also