The same box weighs less when you know who you’re carrying it for.

Effort is not measured by the body alone. Work with a reason attached is genuinely easier to sustain than identical work with none, which is why the hard part of most tasks is the pointlessness rather than the load. Knowing who benefits changes what you can stand.

When something is dragging, try stating exactly who it is for, by name. If no honest answer turns up, that is worth noticing rather than pushing straight through. And when you ask somebody else for effort, give them the reason and not just the task.