2 The Game engine or the Metaphysics of the setting

3 The Game setting in terms of actual terrain features, etc

4 The game's narrative as understood by the players in the real world

5 The game's narrative and meanings of life as understood by the player characters and NPCs

6 The "free will" of the player characters and the intelligent responses of the NPCs and the background features of the game world

That is, a wisdom tale can be told from one character to another within a fictional world, lacking any "moral of the story" overtones simply by avoiding any reference to the real world. It becomes a methodology of success entirely within its own universe, and then may "accidentally" have value in the real world.