Answer:
good and evil
Step-by-step explanation:
The Cadejo is a supernatural being in the form of a dog part of Central American Folklore. It is believed to be a spirit that appears itself to travelers and that there are two types, a while one, which is good, and a black one, which is evil. The white one´s purpose is to protect the travelers during their journey, and the black one intentions is to kill them. It's thought that the black one is an incarnation of the devil.