Soo.....his dream (and dreams are really your higher self trying to help you out!) is telling him...first of all: stop the sweets/junk food....and that will help him be able to get to the bottom of his depression. What does he feel he missing in his life right now? (is it something on the physical, emotional, mental, or spiritual level...? Or....?)
I'd love to hear if he is able to stop the sweets - then what dreams come up after that's dealt with....because if he takes care of the junk food thing...his dreams will fill up that empty space with more support...