" The omnipresent enemy was the outside—that total absence of the things to support life that emptiness called space. It was evil and they feared it—constantly. A rod and staff might comfort in the presence of space, but what you dreamed about was washed air and a womblike enclosed cell where you could divest yourself of the damnable suit. This was the true source of comfort no matter if it came from the Devil himself. "

― Frank Herbert , Destination: Void