The fifth line occupies the ruler's throne yet finds itself in the midst of obstruction and hardship; this is the realm's great Obstruction. Encountering obstruction while situated within danger also constitutes great Obstruction.
In a time of great Obstruction, the second line below responds with central balance and correctness; this represents the arrival of companions offering assistance. When the world is obstructed and one obtains a balanced, upright minister to aid them, how could such help be minor?
Why then does the arrival of companions not state good fortune? It is because this alone is not yet sufficient to overcome the Obstruction.
When a firm, yang, balanced, and upright ruler is in the midst of great Obstruction, unless he secures a firm, yang, balanced, and upright minister to support him, he cannot rescue the world from its distress.
The balance and correctness of the second line indeed offer aid, yet seeking to relieve the world's difficulties through yin and yielding assistance is not something it can achieve.
Since antiquity, sage-kings who overcame the world's obstructions never failed to rely on sage-worthy ministers as their helpers—as when Tang and Wu obtained Yi Yin and Lü Shang.
There have also been instances of mediocre rulers obtaining firm, enlightened ministers and thus managing to cross great perils, such as Liu Shan with Kongming, Emperor Suzong of Tang with Guo Ziyi, and Dezong with Li Sheng.
Even an enlightened and worthy ruler, if lacking such ministers, cannot surmount difficulties.
Therefore, wherever a six occupies the fifth place and a nine occupies the second place, success is often achieved through assistance, as seen in hexagrams like Youthful Folly and Peace.
When a nine occupies the fifth place and a six occupies the second place, merit is often insufficient, as in Difficulty at the Beginning and Standstill (Stagnation).
For when a minister is wiser than his ruler, he assists the ruler in what the ruler cannot do; when a minister falls short of his ruler, he merely provides minor support, and thus cannot achieve great deeds.