The witness problem
Most people don't have a discipline problem. They have a witness problem.
Think about the promises you actually keep. The meeting you show up to, the deadline you hit, the bill you pay. Now think about the ones that slip. Walking. Sleeping earlier. Calling someone. The book you keep meaning to start.
There's a pattern. The ones you keep have a witness. A boss, a client, a family member, a bank. Someone is watching, and that quietly changes what you do. The ones that slip are the promises you make only to yourself. No one is keeping track, so the cost of breaking them is zero, and zero-cost promises don't survive a busy week.
It isn't willpower
We're told the slipping is a character flaw. Try harder, want it more. But the same person who can't keep a private promise to walk will absolutely show up when a friend is waiting at the park. The behaviour didn't change. The witness did.
So the question isn't "how do I get more disciplined." It's "who is keeping track of the small things I said I'd do." For most people, honestly, the answer is no one.
What a good witness is, and isn't
A good witness is not a drill sergeant. It doesn't shame you for missing, doesn't gamify your guilt, doesn't punish a broken streak. It just remembers what you said, asks how it went, and notices the pattern over time. That's it. Being seen, without being judged, is enough to move most of the small stuff.
That's the whole idea behind Soulis. A witness for the promises you make to yourself, in your own language, by voice or text. It asks in the morning, checks at night, shows you the week on Sunday. Miss a day and it just picks the thread back up.