A carpenter dismisses a gnarled old tree as worthless wood. That night the tree visits his dream: your useful trees are cut down in their prime. On the parts of a life that survive because nothing can be harvested from them.
The story is deadpan, which is the funniest register and the most easily missed. The carpenter is the fool. The worthless tree is the sage.
And the tree’s argument is precise. Straight, fine-grained trees get cut in their prime — that is what useful means: convertible into something else, and therefore converted. The gnarled oak is enormous and ancient specifically because nobody could make anything out of it.
Usefulness, the world’s favorite compliment, turns out to be a description of what happens to you.
There is a genuine and well-studied phenomenon here, and it is close enough to the parable to be worth the space.
Take an activity people do for its own sake, attach an expected reward to it, and the intrinsic motivation for that activity often declines — measurably, and sometimes persisting after the reward stops.4 The meta-analytic picture is that this is real but conditional: it shows up most reliably with tangible rewards that are expected and contingent on simply doing the task, and much less with unexpected rewards or verbal praise.3
That is a more specific finding than “measuring something kills it,” and the specificity matters. A wage does not destroy your capacity to enjoy your work. A score attached to something you were doing for love is a more plausible candidate.
I would also say plainly that the leap from this literature to “track nothing you love” is mine, not the researchers’. It is a hunch I act on, supported by a related finding rather than demonstrated by it.
The era’s signature move is converting every unproductive acre into planks. The hobby becomes a side hustle in waiting; the first question asked of any joy is whether it scales.
The walk becomes steps. The sleep becomes a score. The reading becomes a number of books per year.
I do this to myself constantly, which is why the essay exists. The instinct to make a thing I love into a thing I am good at, and then into a thing that produces something, arrives so fast that I have often completed the conversion before noticing there was a choice.
The first is that most people do not get to choose. The tree’s strategy — survive by being unconvertible — is available to those whose material needs are already met. A great many people have to be useful, continuously, because the alternative is not having somewhere to live. Zhuangzi is very funny and he is writing from a position.
The second is that usefulness is not actually a curse. Being needed is one of the better things that happens to people, and work that produces something for others is where a lot of meaning lives. The parable is a corrective aimed at a culture that has gone too far one way, not a description of the good life.
The claim I would defend is small: one acre, deliberately kept out of production, by anyone who can afford one. Not a philosophy of uselessness. A zoning decision.
Note — who can afford an unconverted acre
Plenty of people have to be useful continuously because the alternative is not having somewhere to live. The parable is a corrective for a culture that has overshot, not a general account of how to live.
Informal uselessness gets harvested within a season. It has to be declared.
This list mixes primary texts, translations, scholarship and modern trade books, and the entries vary in how precisely they can be located. Quotations from the discourses follow Bhikkhu Sujato’s translations, freely available at SuttaCentral, cited by the standard sutta reference. Where a phrase is traditional and circulates in several renderings I say so rather than inventing a citation, and anything marked as a paraphrase is my own wording.
Useful means convertible, and convertible means converted. The tree is ancient because nothing could be made from it.
The research version is narrower than the parable: expected tangible rewards attached to something done for its own sake tend to erode the doing. Enough to justify keeping one acre out of production — if you can afford one.