Answer:
According to examples.yourdictionary.com, "Conflict is used to bring a story to life. Internal conflict happens when a character struggles with something within themselves. These two contradicting wants, needs or desires help to build a character."
Explanation: Which entails in meaning for literature, when the character struggles internally like, for example, in Edgar Allen Poe's work, "The Black Cat", the protagonist has an internal conflict within himself against his wife and cats. There is many wants, needs, and desires for the protagonist that helps build his character in which in his story, it builds the protagonist's character up in a dark way.