Worst-case rehearsal (take the shock out)

Calmly rehearse a likely setback in advance so it arrives expected, not as an ambush.

Why it works

Seneca argued that misfortune lands hardest when unexpected; rehearsing it ahead of time drains the shock by making it familiar. Pre-experiencing the setback and your response means part of the emotional and practical work is already done before it happens, so you meet it from preparation rather than surprise. The goal is desensitization plus readiness, not prediction.

How to do it

1. Name a realistic setback you fear, briefly and calmly.
2. Picture it happening and rehearse how you would actually cope — concrete steps, not just the feeling.
3. Close by returning to the present; the aim is "I could handle this", then let it go.

Evidence

Overlaps with stress-inoculation and exposure principles (anticipating and mentally rehearsing a stressor can reduce its impact) and with the reduced sting of expected versus unexpected aversive events. These mechanisms are studied; the Stoic exercise itself is philosophical. (mechanistic)

For people prone to anxiety this is the riskiest variant — it can become rumination. Keep it brief, coping-focused, and firmly bounded, or skip it in favor of subtraction.

Common mistake

Letting the rehearsal run open-ended until it’s just worry. The exercise has a fixed shape — one setback, a coping plan, a return to the present — not a tour of every catastrophe.