We are victims of the post-Enlightenment view that the world functions like a sophisticated machine, to be understood like a textbook engineering problem and run by wonks. In other words, like a home appliance, not like the human body.

In other words, Judaism is not Calvinism.

The human body is essentially something other than an animal organism.

The human body is a miraculous self-healing machine, but those self-repair systems require a nutrient-dense diet.

You don't have a soul; you are your own soul. In other words, you are not this book, your social security card, your body, or your mind. You are you.

Nature builds things that are antifragile. In the case of evolution, nature uses disorder to grow stronger. Occasional starvation or going to the gym also makes you stronger, because you subject your body to stressors and gain from them.