1:46 AM, Thursday December 31st 2020
I interpreted that as embracing and accepting your failures and mistakes, and encouraging people to draw for the joy of it. Don't kick yourself when the result isn't what you were looking for, but instead be happy for those mistakes because they're an opportunity to learn and improve.
The other side of it that I learned from the 250 box challenge is that it takes a lot of practice to get good at something. So instead of being frustrated about not being able to draw a perfect hand (for example), draw hundreds of hands and look closely at your work, to understand how they can improve.