We cannot control our luck—good or bad—but we can control our effort and preparation. Luck smiles on us all from time to time. And when it does, the… - James Clear

Peace occurs when you don’t turn your observations into problems. The first step in any behavior is observation. You notice a cue, a it of information, an event. If you do not desire to act on what you observe , then you are at peace.
Craving is about wanting to fix everything. Observation without craving is the realization that you do not need to fix anything. Your desires are not running rampant. You do not crave a change in state. Your mind does not generate a problem for you to solve.

Habit formation is incredibly useful because the conscious mind is the bottleneck of the brain. It can only pay attention to one problem at a time. As a result, your brain is always working to preserve your conscious attention for whatever task is most essential. Whenever possible, the conscious mind likes to pawn off tasks to the non conscious mind to do automatically. This is precisely what happens when a habit is formed. Habits reduce cognitive load and free up mental capacity, so you can allocate your attention other tasks.

I can't control the other person's behavior, but I can control my response. Their actions may be rude or unacceptable, but I still want my response to be measured and thoughtful. Even if they aren't doing what is right, I still want to make sure I'm doing what is right.