When the X-Men Apocalypse finally died, he said all the way that everything had been revealed. What does this mean?

When the apocalypse invaded Professor X's brain,

I saw the scene when Chin was dreaming.

In this scene, there is a man burning in the fire. ........

When the apocalypse was dying, it was obvious that he had a reaction: it turned out that he had burned himself.

Apocalypse monologue: No matter how hard you try, you can't escape fate. Everything has been revealed. .......