Tao Te Ching, 15

Of old those who were the best rulers were subtly mysterious and profoundly penetrating; Too deep to comprehend.

And because they cannot be comprehended, I can only describe them arbitrarily: Cautious, like crossing a frozen stream in the winter,

Being at a loss, like one fearing danger on all sides, 

Reserved, like one visiting,

Supple and pliant, like ice about to melt. 

Genuine, like a piece of uncarved wood,

 Open and broad, like a valley, 

Merged and undifferentiated, like muddy water.

Who can make muddy water gradually clear through tranquility? Who can make the still gradually come to life through activity?

He who embraces this Tao does not want to fill himself to overflowing. 

It is precisely because there is no overflowing that he is beyond wearing out and renewal. 

Today, I would try to interpret the above test which is translated by Wing-Tsit Chan.

It can be understood from the above text that the one who embraces the Tao will also be like the Tao. Whatever characteristic it has, he also has it.

Some characteristic described from above are first, the person is mysterious just like the Tao. The fullness of the Tao cannot be known to man because the Tao is too deep to comprehend using a human beings mind. Just like the Tao, the one who is like the Tao is also mysterious. You cannot really know or predict his next actions or thinking as you cannot fully grasp him. Second, the person is open for everything. He is open for everything because he does not force things to happen that is influenced by human beings. He believes that natural way is the way things should accord into and not human ways.