A dark night is something that nobody looks forward to except witches and people of a scary nature. If you have a dream of a dark night this is probably because there is something that is scaring you in real life. You are worried about some danger that is coming your way because this is what dark night represents. Night itself is the time when all of your fears get closer to being realized since darkness usually brings fear with it, but the darker the night is, the more fear the dream is meant to inspire. There is something gin your life which you feel intimidated by and which makes you feel outcast. What that thing is will probably be obvious to you. Alternatively a dream of a dark night can also mean that you feel as if something new has suddenly descended on you and you have no way of figuring it out. You suddenly feel like you are in a totally new environment and aren't sure what to make of it. It will take some time for you to get used to it and see where you want to go from there.