A bird flies high and perches in high places. Nine at the Top is firm and not central, dwells at the highest place, and belongs to the Li body; its arrogance can well be imagined, hence the image of a bird is taken.
In a time of wandering, only by humbling oneself and being gentle can one preserve oneself; being overly firm and exalting oneself loses the security that is proper.
A nest is where a bird rests and finds peace; burning its nest means losing its peaceful dwelling and having nowhere to rest. At the top of Li there is the image of burning.
Yang and firmness dwelling at the very top initially pleases his mind, so he laughs first; afterwards, losing peace and finding no one to support him, he wails and weeps. Acting rashly and lightly, he loses his compliant virtue, which is why there is misfortune.
An ox is an obedient beast; 'losing the ox in ease' means losing compliance through heedless carelessness. Li's fire nature ascends, an image of haste and rashness.
Following after 'the bird burns its nest,' the words 'the wanderer' are added; if it did not say 'the wanderer,' it would mean the bird is laughing and weeping.