Why the wash basin at night

To what end?

That has been in my head these days like a stubborn boyband song. It started the one time I pushed for a few more thousand steps to get past my goal of 8k and see that "congratulations" on my watch. When I did, I thought, Ok now what? Nothing else makes sense. Now, I struggle to even bother to wear socks to work without having to think about WHY?