"Do you realise what it means when I say I have been on thirty-seven different celestial bodies—planets, dark stars, and less definable objects—including eight outside our galaxy and two outside the curved cosmos of space and time? All this has not harmed me in the least. My brain has been removed from my body by fissions so adroit that it would be crude to call the operation surgery. The visiting beings have methods which make these extractions easy and almost normal—and one’s body never ages when the brain is out of it. The brain, I may add, is virtually immortal with its mechanical faculties and a limited nourishment supplied by occasional changes of the preserving fluid.