Just a moment ago your bare arms and legs were a little numb from the cold air. Now they're numb because the heat is making your blood vessels throb, and your whole body is limp. When you can't stand that hot current running through your body any longer, just splash yourself with some cold water.
想像你正躺在一池熱呼呼的「磺水」中，縱使剛才手腳在外面的冷空氣中，被冰得有點發麻，現在麻癢的感覺依舊，卻是熱得血脈賁張、全身酥軟；終於你忍不住起身離池，想要為流竄於身體各處的熱流找個渲洩處，這時，去澆一盆冷水吧！