To dream of of something represents an excess in some area of your life. Negatively, may reflect an overwhelming burden. Feeling that it is impossible or difficult to deal with responsibilities or stresses. Work is becoming too much to handle at once.
Positively, of something may reflect a windfall, excess amount of power, or an area of your life that is plentiful. So much of a good thing that you don’t know what to do with it. Some area of your life that is too easy to be concerned with it.
To dream of of garbage represents an excess of something in your life that is unwanted.