Marcus Aurelius, the Roman emperor who ruled from 161 to 180 AD, penned Meditations as a personal journal of anxiety and resilience. Writing in Greek while commanding an army of 70,000,000, he recorded that “you have power over your mind, not outside events.” His notes reveal a leader wrestling with grief, plague, and endless war.

Modern neuroscience echoes Aurelius’ insight. A 2019 meta‑analysis in Psychological Bulletin found acceptance‑based strategies—focusing on controllable responses—among the most effective for chronic anxiety. The Stoic dichotomy of control mirrors this primary versus secondary coping. By channeling energy toward what one can shape, the mind avoids the wasteful churn that fuels worry for every day of life and reduce stress levels.

Aurelius’ practice of negative visualisation—premeditating loss—offers a counterintuitive tool for modern overthinkers. Neuroscience labels it mental contrasting, proving that rehearsing obstacles alongside goals boosts resilience and slashes anxiety. By routinely imagining the absence of cherished things, one sharpens appreciation and diminishes the fear that keeps the mind spiraling toward a calmer mindset in daily practice and reflection.