If you lead with the ISTP pattern, the usual version of this advice slides right off you. People talk about meaningless work as soul-crushing, but you're rarely crushed — you live in the present, you like a concrete problem in front of you, and a genuinely interesting puzzle is satisfying on its own terms whether or not it means anything. You're the one who can take a so-called pointless job and quietly enjoy the parts of it that are good to figure out. That immunity is real, and it's an advantage most types would trade for.
But it hides a specific trap. You tend to treat 'this is an interesting problem' and 'this work matters to me' as the same thing — and they're not. Interest is task-level and present-tense; meaning is about the longer arc, who it helps, what it builds, what you're getting better at over years. You're rich in the first and almost blind to the second, because looking up from the immediate puzzle feels like sentimental fluff, and because asking what it's all building might commit you to something. So the days stay tolerable, even pleasant — and slowly add up to a string of solved problems that tell no story you'd claim as yours.
Solving it isn't the same as it mattering
Here's the distinction worth getting precise about, because you'll use one to skip the other. The absorption you feel cracking a problem is your engagement firing — it's about the puzzle's difficulty, not the work's worth. A pointless task can be fascinating to solve; a deeply worthwhile one can be tedious. You feel the first kind of charge constantly and conclude, reasonably, that the work is fine. It is fine, moment to moment. That's exactly why nothing prompts you to ask the further question.
And the further question is the one that decides whether your days add up. Not 'is this interesting right now?' — that you can always answer yes to, because you're good at finding the interesting angle in anything. The one you skip is 'does any of what I'm getting good at connect to something I'd actually care to have built?' Task-interest can carry you for a long time without that ever being true, which is how a competent person ends up flat and can't say why.
The hired-gun drift
Watch where your easy non-attachment takes you over time and you'll see the pattern: you become a hired gun. Whatever problem is in front of you, you fix it, well, and then you're done with it — off the clock, it's gone from your mind entirely. You'd call that healthy, and there's truth in it; you don't drag work home or stew over it. But the same detachment that keeps the job from weighing on you also keeps it from connecting to anything you'd say is yours. You're free and untethered, which is the goal, except the rope isn't tied to a thing you chose — it isn't tied to anything.
The drain doesn't arrive as a feeling, because you're not living in the feeling register. It arrives as a flat, mechanical quality — the sense that you're cycling through problems that could be anyone's, in a sequence that's going nowhere in particular. You're not unhappy. You're just running, capably, on a treadmill you never decided to be on, and the part of you that would notice that is the part you keep at arm's length.
Find the thread, not the calling
The fix has to fit you, which means it is not 'find your passion' or 'commit to a mission' — that's the language that makes you reach for the door, and rightly, because a grand calling is a cage you'd be smart to avoid. You don't need one. You need something smaller and more concrete: the thread that already runs through what you choose to get good at when no one's forcing you. Look at the problems you actually like — there's usually a pattern in who they help, what they make work, what kind of skill they build. That pattern is your meaning, and it's been there the whole time.
Naming it costs you almost nothing and commits you to almost nothing — which is the point, because that's the only version you'll tolerate. You're not signing up for a life mission. You're just letting yourself notice that you'd rather your skill went toward fixing things people depend on, say, than toward whatever happened to land on your desk. That single noticing turns a string of random solved problems into work that's quietly accumulating into something — without asking you to give up an ounce of your freedom.
Meaning is the one puzzle you won't solve by reflex
There's a reason you've left this one alone, and it's worth saying plainly: every other problem yields to your usual method — get hands on it, figure out the mechanism, fix it, move on. This one doesn't. 'What do I want my work to be for?' can't be cracked by your reflexes, can't be solved in an afternoon, and won't stay solved; it's the rare puzzle that needs you to look up and stay looked-up for more than a moment. So you treat it as not a real question, the way you treat most things that can't be handled with your hands.
But it is a real question, and it's the one with the highest leverage over whether the next ten years feel like they went somewhere. You don't have to answer it with a speech. Answer it the way you answer everything — concretely, in terms of what you'd actually do and who it'd actually serve. Pick the next problem, when you have the choice, partly by whether it sits on your thread. That's not a betrayal of how you operate. It's pointing the operating at something you'd be glad to have built.
You're rarely crushed by meaningless work, because a good puzzle satisfies you all on its own — but that's exactly the trap: interest at the task level isn't the same as the work mattering, and the gap shows up as a flat, hired-gun drift through solved problems that go nowhere. You don't need a calling. You just need to notice the thread already running through what you choose to get good at, and aim at it when you have the choice. Same hands, same freedom — finally building something instead of just clearing the next thing off the desk.