So Mufasa is the king right. But he dies. Then there is a period of time when the king’s Son is thought to be dead. Nala, when she finds out that Simba is alive, she says it is like he is “back from the dead.” Simba then has a vision from heaven and hears the voice of his father telling him that he is His Son, the One True King.
Simba, the King, then returns to his kingdom, and fights off the workers of darkness, defeating the illegitimate king Scar, (Satan), and brings in a “New Creation.”