An easement "creates a nonpossessory right to enter and use land in the possession of another and obligates the possessor not to interfere with the uses authorized by the easement." Patterson v. Paul, 448 Mass. 658, 663 (2007). In other words, a property owner can grant another party the right to use his property in certain ways - such as the right to enter and walk through it - without giving up ownership of the property. Disputes can arise, however, when either party misunderstands or abuses the rights involved.