Bum 
To dream that you are a bum represents emotions relating to loneliness and solitude. You don't feel as if you belong. You find it very difficult to handle the various issues and situations in your life. To see a bum in your dream implies that you should find the ambition and drive to improve your current situation.
Zero
To dream of the number zero means total freedom, timelessness, and eternity. The number zero also represents God.
It may also be thought of as a circle, which itself represents completeness and infinity. Additionally, to dream of seeing a zero may be a warning that you're currently 'going around in circles.'
Lastly, it may mean you have nothing.
Blankness
Dreaming that you are in a very plain, blank space in a dream symbolizes being lost in waking life. You may not know where to go next or what to do next, and your mind is trying to deal with this situation in your dream by placing you in a blank space. It is normal to experience fear and anxiety in these dreams, and this mirrors your fear and anxiety about what's next for you in waking life.
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