Dirt within itself holds energy so for example you can use the dirt from a bank when you’re preparing your money tree to bring in money because banks have transactions on a regular basis(highly recommend bank dirt). Now with graveyard dirt the dirt, it belongs to a certain person and that person has a certain type of energy it could be good energy it could be negative energy but nonetheless it’s energy. It also can symbolize endings and beginnings. so when you use graveyard dirt Number one you have to make sure that it is OK to take it but before you do that you always have to pay(cigar,coins,liquor etc)for it and give thanks but I would not recommend doing that early on, that’s where I messed up it but fortunately for me it was from a family member. Some people even use graveyard dirt in “left hand magick” which can be dangerous.