It’s the most important question you can ask whenever you set out to do a thing.
Why do it?
Why go to the trouble?
From an unmotivated perspective — one I myself had not too long ago — it can sound like a discouragement.
Why would you even think of doing the thing you are about to do?
What’s the point?
And in that mindset, you want to keep the question as far from your mind as possible.
When trapped in lethargy, motion of any kind is a positive act.
But once you get the ball rolling, and action is automatic (or near enough to), then you need to start asking the most important question.
If you don’t have a satisfactory answer to this question, you’ll never be able to sustain your efforts. You might survive for a week or more on sheer willpower, but that’s an easily-exhausted resource that you’ll run out of eventually.
Trust me. I know from experience.