Aragorn creates his own path, he is the rightful heir to the Throne of Gondor. Aragorn, like Gandalf also has a death/resurrection story behind him. Aragorn passes through to the other side in order to make peace with those who were left abandoned and to fulfill their oath as men of Gondor. Passing to the other side, Aragorn makes peace with demons and in doing so show's that good can always conquer evil, no matter the case. Jesus and the bible are always trying to preach that good always conquers evil. Lord of the rings helps to show this common theme in many ways. Much like the bible.