Think about the conflicts in your own life for a minute. Have you ever had an argument with one of your parents? That is an external conflict, with another person. Have you ever had to battle nature by living through a hurricane or trying to get home in a snowstorm? That is an external conflict with nature. In both instances, you are "battling" something outside yourself. However, suppose you are tempted to use an illegal drug or steal a candy bar from the supermarket. You must do battle with yourself in those situations, which is an internal conflict. Another example of internal conflict will occur when you must decide what college to attend. You could be accepted by two schools that you really want to go to, but the decision is difficult because each offers different advantages and disadvantages, creating a conflict in your mind.
The same kinds of conflicts occur in literature. In The Secret Life of Bees, Lily is in conflict with herself because she wants to and does not want to confess to the lies she told when she arrived at the Boatwrights' house. She is in conflict with her father throughout the book. In The Kite Runner, Amir is in constant conflict with himself, grappling with the notions of right and wrong in all of his relationships. He is in conflict with Assef, who is his nemesis throughout the book. "The Most Dangerous Game" offers examples of external conflict and conflict with nature.