The word discipline gets a bad rap. It shouldn't. Discipline is not the same thing as punishment (which is what most people seem to think).
The kind of discipline I'm talking about is an “activity, exercise, or a regimen that develops or improves a skill; training.” That's from the dictionary, so it must be true.
Writing this blog is a form of discipline for me. I do it every day. Not as punishment and not as obsessive adherence to arbitrary routine but as a purposed and consistent activity that is aimed at something.
I think the world could use more discipline of that kind.