修炼内丹的三个阶段：将精转化为气，将气转化为神，最终将神归于虚无。

略知一点哲学可能使人倾向于无神论，但深刻的哲学可能使人回归到宗教。

And when you do I want you to know this， remember this: there is no such thing as failure. Failure is just life trying to move us in another direction. Now when you’re down there in the hole， it looks like failure. So this past year I had to spoon feed those words to myself.