True level must be like true symbols (like, in the idea that there are true names and words. Like a divine language).

If you have a true level or symbol then you have something, just as good as reality, but manipulable like language. The best of both worlds.

And even better, you need never leave the confines of the inside of your mind ever again. You can live, within your construct of perfect god-language, and interact with the world from there. Safe and powerful.