We're lucky in this data we have many responses from each person, and so we can look and see, does mind-wandering tend to precede unhappiness, or does unhappiness tend to precede mind-wandering, to get some insight into the causal direction.
我们很幸运的从大家那里搜集到这些数据， 据此我们可以观察并且找出，是走神 在痛苦之前出现，还是痛苦 在走神之前出现，通过这种以因果为导向 的方法。