All the visions of space that Ransom had on Earth are proven to be wrong, to the point where Ransom rejects science – the pinnacle of human progress – and goes back to older sources of knowledge about the goodness of the heavens. One of these sources is hinted to be the Bible, as Lewis quotes part of a verse from Psalm 19 when talking about the glory of the heavens. Lewis also includes a quote from Milton, most famous for his Christian epic
Paradise Lost. Lewis therefore starts to introduce elements of Christian thought into this new science fiction world.