When you have a writing practice, your goal is to fill a page. Once the page is full, your mind keeps working with it, even if you never give it another conscious thought.
Begin today’s page by drawing a half-dozen or so random squiggles scattered evenly across the page.
Look at each one. If it reminds you of something (a person, a cow, a microbe…) add to it. Draw more lines. Add some words. Make it talk. Write what it isn’t.
If your squiggle doesn’t “speak” to you, add another squiggle to it and see what’s different.
Keep going in this half-random, half-orderly way until your page is full.
Write a title on the top of the page and put the date on it, too.
After you put the page away, your mind will keep working on it. Even when you are asleep.