Waiting means danger lies ahead, waiting for the proper time before advancing. Top Six resides at the end of danger; when the end is reached, change occurs. Being at the extreme of Waiting, having waited long, it finally attains.
Yin halts at Six and thus rests peacefully in its place; therefore it is said, 'entering into the pit.' The pit is that in which one rests peacefully. Once peacefully halted, those following behind must arrive. The 'three uninvited guests' refers to the three yang lines below.
The three yang lines of The Creative (Heaven) are not things meant to remain below; they wait for the time and then advance. Since Waiting has reached its extreme, they all advance upward. 'Uninvited' means they come of themselves without being urged.
Top Six, having waited and attained its peaceful resting place, when the host of strong lines arrives, if it does not harbor jealousy, envy, anger, or contention, but receives them with utmost sincerity and full respect, then no matter how fiercely rigid they may be, how could there be any reason for them to violate or oppress it?
Therefore, ultimate good fortune is attained. Some might doubt: can a yin line resting above three yang lines truly be peaceful?
The answer is: the three yang lines are of the body of The Creative (Heaven) whose will is to advance upward, whereas the position of the Six is a yin place, not their proper resting place; hence they harbor no intent to seize or contend.
Treating them with respect thus brings good fortune.