The second line arranges nothing and succeeds anyway. Legge's translation has its subject happening to meet his lord in a bye-passage, and gives no error. The event is accidental in form: not an audience, not a petition, not a formal approach through the proper channel, but an encounter in a side lane that could not have been scheduled and would have been improper to arrange even if it could.
The classic calls it no error rather than good fortune, and the distinction carries the reading. In a time of estrangement the correct channels are precisely the ones that have stopped working, and somebody who insists on using them will reach nobody at all. Meeting in a lane is irregular and the text absolves it, which is a different thing from recommending irregularity as a method. What is permitted is the taking of an opening that has presented itself.
Structurally this is a strong stroke, central in the lower trigram Dui but incorrectly placed in an even seat, and it corresponds to the yielding fifth line at the ruling place of the upper trigram. That correspondence is the lord of the line, and it is one of only two proper correlations the whole hexagram contains. In a figure where nearly every line is out of position, two strokes that answer each other across the divide are worth far more than the irregularity of where they happen to meet.