There is a water park at TRC Peterland and there is a pit with a depth of probably 5-6 meters for freedives and aqualangists. And here I was a beginner "freediver", several times calmly reached the bottom, but I couldn't lie on the bottom - the volume of the lungs pushed out. Having done hyperventilation on top, dive and while immersed specifically devastated the lungs completely, going to the bottom with a toporic. Lieing on the bottom of this pool for 20 seconds, he looked at the floating legs of the floaters from above and decided to pop up. But then the difficulty arose... I floated out of the feelings of those 4 meters of eternity. There was no panic, but it was very difficult. The oxygen burned from powerful movements - instantly. A little more and I would start swallowing water from spasms.

Now I write and my hands sweat from memories.