Can you recall any specific candy, what kind of vending machine, the building? Vending machine could mean easy access to a desired object. Grey Seeing things in different perspective as opposed to seeing things, figuratively, as black and white. Maybe the fact you couldn't tell what the big vending machine, you couldn't tell what it was means you're not sure what you want. That's just a thought. Gray hue gray area? candy enjoyable parts of your life or wanting your life to be more enjoyable. Green with envy, green representing nature, green, beginner, green horn? dollars opportunities? African American man I think depends on your feelings of black people, your experiences with them. Caveat: I'm no expert dream interpreter my ideas are only suggestions. One thing I do know is I don't believe in modern day dreams predicting the future.