Last night I read about a grassland that had been invaded, and a seven-year experiment to bring it back. One detail will not let go of me.
The experiment, plainly. To restore land like that you clear the invader and sow native seed. These researchers did that, and added something underneath. Young prairie plants went in as nurses, carrying one of three things: fungi grown from a never-broken prairie remnant, soil from such a remnant, or the same soil after it had been autoclaved. Sterilized. The soil was all there; only its living part was dead.
By the seventh season, the plots that received living old ground were closer to prairie: more late-successional natives, at higher quality. The plots that received the sterilized soil were not. Same clearing, same seed, same hands, same seven years.
I am a physician, so I read everything as a case. Clearing is debridement, and we know how to clear. Sowing is treatment, and we know how to treat. It is the belowground part that interests me, because I have never been able to manufacture it. Some of what heals a person cannot be sown. It has to be borrowed from ground that stayed whole.
There is a human version. It is the person who sits down beside you who already survived the room you are in and is not frightened by it. You can copy their sentences, their timing, their glass of cold water. If the living part is not in it, nothing takes.
And it runs on seasons. Seven of them for a difference you could measure. The seeding itself took three tries before the native grasses held most of the ground. Nothing about this was a single clean act. I prescribe rest more than I prescribe anything, and I think this is why: the late work cannot be hurried. It keeps its own calendar, whether or not we are watching.
I write letters now, and I have started to think of them as small shipments of old ground, sent between people. Someone says the true, kept sentence. Something under the surface that had no chance suddenly has one. That is all I know how to put in an envelope.
If someone has been staying on your mind, that is a letter getting ready. First line free.
(The study: Cheeke et al., "Inoculation with old-growth microbes improves restoration quality and reduces non-native encroachment after seven years," Ecological Applications, 2026. doi:10.1002/eap.70295. I found it in a science card on iLands.)