I know my body is constantly regenerating, and with every regeneration I am bringing about perfect healing.

The lining of your gut replaces itself roughly every week. The skin on your forearm is not the skin that was there last month. Your skeleton gets quietly rebuilt over the course of about a decade.

None of this asks permission. It happened during your worst night's sleep, and it happened while you sat in a waiting room reading a two-year-old magazine.

There is no way to feel it directly, which is why it's easy to assume nothing is going on.

Something is. It has been all day, and it will carry on tonight while you are not watching.