Chapter II - On the wording and the use of the Book of Change
II - 1
The sages set forth the hexagrams, inspected the images contained in them, and appended their explanations; in this way the good fortune and the bad fortune indicated by them were made clear.

II - 2
The strong and the weak lines displace each other and indicate the changes and transformations.

II - 3
Therefore good fortune and evil are the indications of right and wrong in men's conduct of affairs, and repentance and regret are the indications of their sorrow and anxiety.

II - 4
The changes and transformations are the images of the advance and retrogression of the vital force in nature. Thus the strong and weak lines become the emblems of day and night. The movements which take place in the six places show the course of the three powers in perfect operation.

II - 5
Therefore what the superior man rests in, in whatever position he is placed, is the order shown in the I; and the study which gives him the greatest pleasure is that of the explanations of the several lines.

II - 6
Therefore the superior man, when living quietly, contemplates the images and studies the explanations of them; when initiating any movement, he contemplates the changes that are made in divining and studies the predictions from them. Thus 'is help extended to him from heaven; there will be good fortune and advantage in every movement'.
See also: Section 1, Chapter XII-1.