Above: The Receptive (8)
Below: The Difficult (4)
Like ground water stored in the earth, something valuable but invisible is available when required, like the power of the people to form an army. An army is inherently dangerous. The attributes of the component trigrams are danger and obedience. Discipline is vital to success.
The strong line in the second place symbolises a general who captures the hearts of his troops and awakens their enthusiasm. If justice and diligence is the basis for action, all goes well. Clear and comprehensible aims for the impending struggle need to be set out so all pledge themselves as one.
Without clarity and conviction, success will be elusive.