Beneath the Lithosphere, there is hot molten metal.
Above the Lithosphere, air. Our atmosphere that sustains life. Beyond the atmosphere...nothing but death.
The Lithosphere is where you're chilling and reading these words. In many ways, the Lithosphere is all we've got. At least for now. Lithosphere is a reminder to yourself to stay grounded. It's also a spectacular artistic masterpiece. However deep you go is up to you.