I shall be supplied with whatever I need; and, if I have not everything I desire, I may conclude it is either not fit for me, or I shall have it in due time.
A revolutionary poem will not tell you who or when to kill, what and when to burn, or even how to theorize. It reminds you... where and when and how you are living and might live, it is a wick of desire.
It (Tao) is eternally without desire. So, it can be called small. All things return to it, although it does not make itself their ruler. So, it can be called great.
Just as a waterfall grows slower and more lightly suspended as it plunges down, so the great man of action tends to act with greater calmness than his tempestuous desires prior to the deed would lead one to expect.