When you do Sitting Meditations and Buddhism, this medical school teach, you have your eyes open a reminder, that first of all, you don't fall asleep but also to remind you that you are supposed to be engaging the world as you do it, rather than having your eyes closed and isolating yourself.

当你学习佛教，进行坐禅时，据医学院的方法，你要睁开双眼,提醒自己，首先不要睡着,也是为了提醒自己,冥想时也要参与到这个世界中来，而不是闭上双眼,与外界隔绝。

普林斯顿公开课 - 人性课程节选