Upper Trigram:Chen, Thunderclap, Movement
Lower Trigram:Sun, Gentle Penetration, Mildness, Wind, Wood
Governing Ruler:Nine in the second place

The Image
Thunder above the wind: the image of Heng. The superior man, in accordance with this, stands firm, and does not change his direction or method of operation.

Miscellaneous Signs
Effect quick answering cause, in Hsien appears; While Heng denotes continuance for years.

The Judgement
Heng indicates successful progress and no error in what it denotes. The advantage will come from being firm and correct; and movement in any direction whatever will be advantageous.

Appended Judgement
Heng shows us solidity of virtue, and manifold experience without any wearyness. Heng also appears in the uniformity of virtue.

Heng denotes long continuance. The strong trigram is above, and the weak one below; thunder and wind are in mutual communication; they have the qualities of motive force and docility; their strong and weak lines all respond, each to the other: these things are all found in Heng.
'Heng indicates successful progress and no error in what it denotes. The advantage will come from being firm and correct': this indicates that there must be long continuance in its way of operation. The way of heaven and earth is to be long continued in their operation, without stopping.
'Movement in any direction whatever will be advantageous': this implies that when the moving power is spent, there will be a new beginning.
The sun and moon, realising in themselves the course of heaven, can perpetuate their shining. The four seasons, by their changing and transforming, can perpetuate their production. The sages persevere in their course, and all under the sky are transformed and perfect. When we look at what they continue doing long, the natural tendencies of heaven, earth, and all things become apparent.

The Lines and commentaries
Bottom six
Showing its subject deeply desirous of long continuance. Even with firm correctness there will be evil; there will be no advantage in any way.
The 'evil attached to the deep desire for long continuance', arises from the deep seeking for it at the commencement of things.
Nine in the second place
Showing all occasion for repentance disappearing.
'All occasion for repentance on the part of the subject of this line disappears': he can abide long in the due mean.
Nine in the third place
Showing one who does not continuously maintain his virtue. There are those who will impute this to him as a disgrace. However firm he may be, there will be ground for regret.
'He does not continuously maintain his virtue': nowhere will he be borne with.
Nine in the fourth place
A field where there is no game.
Going for long in what is not his proper place, how can he get game?
Six in the fifth place
Showing its subject continuously maintaining the virtue indicated by it. In a wife this will be fortunate; in a husband, evil.
'Such firm correctness in a wife will be fortunate': it is hers for the rest of life to follow with an unchanged mind. The husband must decide what is right, and lay down the rule accordingly: for him to follow (like) a wife is evil.
Top-most six
Showing its subject exciting himself to long continuance. There will be evil.
'He is exciting himself to long continuance': far will he be from achieving merit.

1. Ch'ien
Creative Principle

2. K'un
Passive Principle

3. Chun
Initial Difficulties

4. Meng
Youthful Inexperience

5. Hsü

6. Sung

7. Shih
The Army

8. Pi
Seeking Unity

9. Hsiao Ch'u
Minor Restraint

10. Lü
Treading carefully

11. T'ai

12. P'i

13. T'ung Jen

14. Ta Yu
Great Possessions

15. Ch'ien

16. Yü

17. Sui

18. Ku
Arresting Decay

19. Lin

20. Kuan

21. Shih Ho
Biting through

22. Pi

23. Po

24. Fu
The Turning Point

25. Wu Wang

26. Ta Ch'u
Restraining Force

27. I

28. Ta Kuo

29. K'an
The Abyss

30. Li
Clinging Brightness

31. Hsieh

32. Heng

33. Tun

34. Ta Chuang
Strength of Greatness

35. Chin

36. Ming I
Sinking Light

37. Chia Jen
The Family

38. K'uei

39. Chien

40. Hsieh

41. Sun

42. I

43. Kuai

44. Kou
Coming on

45. Ts'ui

46. Sheng
Moving upward

47. K'un

48. Ching
The Well

49. Ko

50. Ting
The Cauldron

51. Chen

52. Ken

53. Chien
Gradual Progress

54. Kuei Mei
Marriageable Maiden

55. Feng

56. Lü
The Wanderer

57. Sun
Gentle Penetration

58. Tui

59. Huan

60. Chien

61. Cung Fu
Inner Truth

62. Hsiao Kuo
Small Excess

63. Chi Chi
Completion and After

64. Wei Chi
Before Completion