It's very relaxing, it achieves the same function as focusing on your breath, give you something not to get lost, but feel sort of centered in.

它令人十分放松，它能和集中注意力呼吸,起到同样的作用，并不是让你迷失，而是感觉到集中起来。

普林斯顿公开课 - 人性课程节选