Epictetus taught the fundamental distinction between what is 'up to us' and what is not, making this the cornerstone of Stoic peace of mind.
How to Practice
Identify one thing causing you stress or frustration right now.
Naming the source of resistance is the first step to releasing it.
Ask honestly: is this within my control, or is it outside my power?
This simple question is the heart of Stoic acceptance practice.
If it's outside your control, say to yourself: 'I accept this as it is.'
Verbal acknowledgment helps your mind release its grip.
Redirect your energy: what can you control in this situation?
Acceptance frees energy that resistance was consuming.
Take one small action on what you can influence, right now.
Action on what's possible turns acceptance into empowerment.