How you feel in a dream, and the feeling tone of particular items or the environment in a dream are extremely important. Fear in a dream and its significance may partly depend on what, in the dream, is the object of your fear, but this will nearly always represent something within you, for example some repressed emotion or instinctive drive. What is frightening in a dream may represent the unconscious in general, to the extent that it is still unexplored. The unconscious contains qualities opposed to those of the conscious mind. However these opposite qualities are there to round out your personality, so it is helpful in overcoming your fear to become open to and acquainted with what your unconscious contains. This may represent some unconscious fear or something you have repressed to which your unconscious is seeking attention (the knocking).e.g. quilt feelings, fear of punishment, sexuality, anger, aggression, interactions with others, or some part of you that is threatening to destroy your inner peace or outward efficiency. Nearly everything in your unconscious has two aspects: a threatening or unattractive aspect, when it is shut away and neglected, and a positive, creative aspect, when it is acknowledged and given an appropriate place. Consider what aspects of your life require attention to bring more peace or better efficiency.
Green in a dream signifies that you have the 'green light' for positive change (as in, if you open the door and let it in). Green indicates peace and wellbeing and suggests abundance, having enough, prosperity and wealth. Green can also suggest ignorance to grown-up issues and expectations, Dark green shows materialism or measuring others, or yourself, by money or material wealth. Green mat suggest that we have a desire to return to simplicity.