translation.en: What we have is exactly the same thing, the same activity, but one of them makes you feel great and the other one, with just a small change of posture, makes you feel terrible.
translation.zh: 同样的事件，同样的活动， 只改变其中一小点，一个活动可以让你感觉很棒 而另一个可以让你感觉 很糟糕。