"Binding souls to bodies" is some classically eco/fash shit and part of a wide current (cf a lot of Heideggerian shit). Fuck "being human" -- whatever the hell one cult or another asserts that means -- instead let's just be free. https://twitter.com/BVWU_IWW/status/1186763843793342464 …
It sounds like body horror. I had a nightmare once that the afterlife was just a place where the soul was bound to the body regardless of how much it degraded or rotted so that there were just these jars of dust that were conscious that had been scooped up by younger people.