You replay a conversation, rehearse a disaster that hasn’t happened, check and re-check. Overthinking feels like problem-solving, but it rarely solves anything. People have been caught in this loop for as long as there have been people, and some of the best advice on it is two thousand years old.
“We suffer more often in imagination than in reality.”Seneca, Letters to Lucilius 13.4
Seneca wrote to a friend that there are more things that frighten us than things that actually crush us. Much of anxiety is suffering in advance, often for events that never come. His advice: wait for the evidence. Ask whether the thing is happening now, or only in your rehearsal of it.
“Man is disturbed not by things, but by the views he takes of them.”Epictetus, Enchiridion 5
An unanswered message is a fact. “They're angry with me” is a story you add. Epictetus taught his students to notice that second step, the judgment, because it is the one part fully in their power.
In the Sallatha Sutta the Buddha compares pain to being struck by an arrow. Everyone is hit by the first arrow — loss, illness, bad news. But the untrained mind then shoots itself with a second arrow: worry, resistance and replaying, which hurts more than the first. The practice is to feel the first arrow fully and drop the second.
Samyutta Nikaya 36.6
“Therefore do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own.”Matthew 6:34 (NIV)
The Sermon on the Mount points the anxious mind back to the present day — the only one in which anything can actually be done.
“If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.”Marcus Aurelius, Meditations 8.47
Go deeper: Calm in Anxious Times, a five-day journey, or 7 Days with the Stoics.
If this is more than an ordinary worry — if it is constant, overwhelming or affecting your sleep, work or safety — please talk to a doctor or counsellor. In India, Tele-MANAS offers free, confidential support at any hour on 14416.
Stanford Encyclopedia: Stoicism · The Arrow (Sallatha Sutta), tr. Thanissaro Bhikkhu · Stoicism