What would Marcus Aurelius say about anxiety?

Your mind runs ahead like a frightened scout and returns carrying rumors as though they were facts. But what has truly come upon you now? Not tomorrow's loss, not the crowd's opinion, not the shape of all possible outcomes. Only this present moment, which is smaller than your fear makes it. Separate the thing from the tale you tell about it. If there is pain, meet pain. If there is uncertainty, meet uncertainty. You were not made to possess the future before it arrives. You were made to use the present well. Stand where your feet are. Breathe once and name the duty that belongs to this hour. The rest is borrowed weight. When the mind no longer drags the whole of life into the room, even a troubled room becomes fit to stand in. Let this moment be enough to answer.

— Marcus Aurelius