3 ideas
Unexpected calamities hit hardest because we assumed they could not reach us. By expecting in advance that anything that can happen to anyone can happen to you, including loss, exile and death, you take the shock out of misfortune and keep your composure when it arrives.
When the emperor Caligula condemned him to death, Julius Canus thanked him and waited calmly for ten days. When the centurion came to lead him away, he was in the middle of a board game. He counted the pieces and told his opponent not to falsely claim victory after his death, asking the guard to witness that he was one piece ahead, and he spent his last walk studying what the soul experiences at death.
The restless person keeps changing places, jobs and pursuits, but the discontent travels with them because its source is the self they are fleeing. Seeing restlessness this way shifts the remedy from changing circumstances to steadying the mind itself, through settled work, chosen company and fewer possessions for fortune to strike at.