The closest I've come to true silence was trekking into the Sahara desert. At night I went about a km from the camp and sat in the dunes. No wind, no insects, n

The closest I've come to true silence was trekking into the Sahara desert. At night I went about a km from the camp and sat in the dunes. No wind, no insects, no sound at all. And I have to say, it was unnerving. Your breathing, your heartbeat suddenly roar in your ears.