The novel is reminiscent of Dr Faustus as a deal is done with the devil. The devil wants our focus to be on him and not on others or on God. The devil wants to keep us ‘me’ focused and worshipping at the altar of me, myself and I.
Within the story we learn how the world would function without various bits of stuff. Not unsurprisingly the world still turns without stuff. Stuff is just stuff. We buy it, collect it and hoard it but it’s just stuff.