"He who is able, while still here, to withstand the urge of desire and anger before liberation from the body — he is a yogi, he is a happy person."
Modern explanation
In the middle of the day, return to this: The pause between feeling and acting is the seat of your freedom. Make that pause longer.
Practical application
Before responding to the thing irritating you, draft your reply, wait ten minutes, then re-read it.
Reflection question
What boundary is this anger asking me to set, calmly?