To a Witch Earth Power and Divine Power/Energy are used interchangeably. It is the power of creation that joins everything with a life force in a metaphysical web or potent timeless energy. It is precisely this energy that a Witch channels during ritual, raw and divine, commanding and steadfast.
Everyone is in tune with some aspect of Earth Power; however only a dedicated Witch (or persons of magickal persuasion) can gain access its full potential. This is achieved through knowledge and guidance which have accumulated either hereditarily, through a mentor or through personal study. And even then, as that knowledge grows and the years pass, your bond to the earth and all her majesty will increase three fold.