Bombyx mori, a silkworm moth, has been cultivated for so long that it can no longer exist without human care. Because it has been domesticated, it has lost the ability to fly.
"Anything that feels that good couldn't possibly be bad. There's something about death that is comforting, the thought that you could die tomorrow frees you to appreciate your life now."
"Formication" is a hallucination that bugs or snakes are crawling on or under the skin, and is common to amphetamine and cocaine users. This hallucination is also referred to as "crank bugs."