Dreams of a dock symbolize a transition space between your conscious and unconscious, and the mundane and the mystical where the veil between worlds is thin. Perhaps you are coming back to shore to rest and incorporate what you’ve learned from your voyage into the deep end of your emotional ocean. See Bridge.... Strangest Dream Explanations
Arriving at a loading dock in a dream may represent needing to retrieve the fruits of your labors or the cash from a large sale. It might also represent needing to unload some heavy burden from your shoulders.
A loading dock may deliver the goods on someone you mistrust.... Ariadne's Book of Dream
Unloading one’s burdens, or unloading one’s cargo in a dream means paying charity and doing good for the benefit of those who appreciate and those who do not appreciate.... Islamic Dream Interpretation