The tractor is showing that these issues affect your disgestive/elimination system and you are to face the root of what makes you want to keep others a safe distance (fences keep people out) from your heart and feelings. :)
I'm kind of on a mission to spread Michael Sheridan's Method of Dream Interpretation as the golden standard that people should be referring to for understanding their dreams (because it really is remarkable). If you wanted help building a community like that, I'd be in. :)