I Ching hexagram 28
Hexagram 28: Da Guo
Overload · 澤風大過 · Lake above, Wind below
The central beam is bending under too much weight, and the time calls for unusual measures.
What this hexagram is about
More weight is on you than the structure can bear, such as a workload that has outgrown its support. Da Guo (Overload) is about the point where ordinary measures stop working, and the lines run from careful padding to a reckless wade.
A way to think about it
Count what you are carrying right now and decide which part of the load belongs to you, then ask what it would take to shore up the weak points before anything gives way.
The text, with Legge's translation
Judgment
棟橈，利有攸往，亨。
Tâ Kwo suggests to us a beam that is weak. There will be advantage in moving (under its conditions) in any direction whatever; there will be success.
The main roof beam is bending under too much weight. The text still says it is time to move and that things can go through, since an overload calls for an extraordinary response.
Image
澤滅木，大過；君子以獨立不懼，遯世无悶。
(The trigram representing) trees hidden beneath that for the waters of a marsh forms Tâ Kwo. The superior man, in accordance with this, stands up alone and has no fear, and keeps retired from the world without regret.
Line 1 · 初六
藉用白茅，无咎。
The first line, divided, shows one placing mats of the white mâo grass under things set on the ground. There will be no error.
You lay soft white grass under the object you set down, taking extra care at the very start, and such caution is free of fault.
Line 2 · 九二
枯楊生稊，老夫得其女妻，无不利。
The second line, undivided, shows a decayed willow producing shoots, or an old husband in possession of his young wife. There will be advantage in every way.
A withered willow sprouts fresh shoots, and an older person takes a much younger partner. New life enters something old, and the text finds nothing here that works against it.
Line 3 · 九三
棟橈，凶。
The third line, undivided, shows a beam that is weak. There will be evil.
The main beam is already bending and cannot take any more. Pushing harder at this point only adds to the strain, and the reading is unfavorable.
Line 4 · 九四
棟隆，吉。有它吝。
The fourth line, undivided, shows a beam curving upwards. There will be good fortune. If (the subject of it) looks for other (help but that of line one), there will be cause for regret.
The beam arches upward and holds firm, which the text reads as good. Reaching for extra help from the wrong place, the line adds, brings regret.
Line 5 · 九五
枯楊生華，老婦得其士夫，无咎无譽。
The fifth line, undivided, shows a decayed willow producing flowers, or an old wife in possession of her young husband. There will be occasion neither for blame nor for praise.
A withered willow puts out flowers, and again an older person pairs with a younger one. The bloom pleases the eye and does not renew the roots, so the text gives neither praise nor blame.
Line 6 · 上六
過涉滅頂，凶，无咎。
The topmost line, divided, shows its subject with extraordinary (boldness) wading through a stream, till the water hides the crown of his head. There will be evil, but no ground for blame.
You wade into deep water that covers your head. The text calls it a bad outcome and still says no one can fault the effort, because it was made for a worthy purpose.
Chinese text: the received Zhouyi, public domain. English: James Legge, The Yi King, Sacred Books of the East vol. 16 (1882), public domain. Plain notes written by this site.
Questions
I cast hexagram 28. Which text do I read?
With no changing lines, read the judgment: "Tâ Kwo suggests to us a beam that is weak. There will be advantage in moving (under its conditions) in any direction whatever; there will be success." With changing lines, read the lines that changed. When several change at once, Zhu Xi's rules decide which text leads, and the casting page marks it for you.
What are the nuclear, opposite and inverted hexagrams of Da Guo?
The nuclear hexagram is 1. Qian (Heaven). The opposite is 27. Yi (Nourishment). The inverted hexagram is Da Guo itself, since the figure reads the same upside down.