The Flammarion engraving depicts the cosmology of the Bible. The earth is flat. The sun, moon and stars are affixed to a crystalline dome, which turns, dragging the heavenly bodies with it. Beyond the dome is heaven, the abode of God.
In an everyday sense, I think this cosmology makes sense. The sky does look like a dome, with lights moving across it. I can imagine God living above the dome, the earth like a womb within his infinity. It’s a comforting model of the universe, but it’s not true. There’s so much more.