"Held-to-maturity"
It's kind of like someone who knows he is dying says: no, I won't be dead, I'll let myself be frozen - that is: "held-to-maturity" - and then I won't be dead, just frozen. I won't be dead until I'm thawed out at some point and only if then it becomes clear, that there are no signs of life whatsoever ... o.k., then and only then I am dead.
remarkable !