Kourosh Dini:
First, by writing, be that of your ideas or your tasks, you use time in a wonderful organic way. Not only is there a free beauty unique to ink meeting the page, perhaps heightened with a nice pen, but there is a gentle living path for an idea to develop. Tracing letters directly from mind through muscle and instrument engages a flowing feedback.
https://www.kouroshdini.com/a-benefit-in-handwriting/
Even better, if you attempt to write nicely, to make your words appear as something you enjoy reading, you need to slow down. Like any path of mastery, one needs to both reduce scope and speed to the edge of ease, and then preferably gently, guide your growth from there.
Writing by hand invites you into that process.