Lines Four and Five of Huàn mutually depend on each other, so their meanings are discussed together. The Commentary on the Judgment says 'joins with what is above.'
Four is gentle, compliant, and correct, occupying the high minister's position; Five is firm, central, and correct, occupying the sovereign's position.
Ruler and minister unite their strength, firmness and yieldingness complementing each other to rescue all under Heaven from dispersion.
In a time of dispersion, using firmness alone cannot draw people to attach themselves; using yieldingness alone is insufficient for them to rely upon.
Four assists the firm and central ruler with the correct path of gentle compliance; ruler and minister share the achievement, which is how they rescue from dispersion.
In a time when all under Heaven is scattered, being able to bring them together into a community may be called supreme goodness and great fortune. 'In dispersion there is a mound, beyond what ordinary minds conceive' is praise: a mound (丘) is a great gathering.
Amid dispersion, being able to bring about a great gathering—the merit is immense, the undertaking exceedingly difficult, the functioning supremely wondrous! Yí (夷) means ordinary; it is not what ordinary vision can conceive. Who but the vastly worthy and wise could achieve this?