Then one night, Simba's father appears to him in a vision;

Mufasa: Simba.
Simba: Father?
Mufasa: Simba, you have forgotten me.
Simba: No! How could I?
Mufasa: You have forgotten who you are and so forgotten me. Look inside yourself, Simba...you are more than what you have become.
Simba: How can I go back? I'm not who I used to be.
Mufasa: Remember who you are. You are my son, and the one true king. Remember who you are.

--The Lion King, Disney (1994)