Somedays you just need to write. No matter what. Even if it's really late at night.
It could because of something that happened in your world and writing is your therapy, or maybe you came across the subject of your writing, or even, some days, you just have the inspiration and the urge to write. Or, if you're not a writer, to create.
All three gave me the urge to write today, which is why I'm only giving you a short post today. I'm writing instead.