The second line answers the first's quiet beginning with visible capacity. Legge's translation gives the image of a great wagon used for carrying loads, and states that one may go forward and undertake something, since the strength needed to bear great possession is genuinely present and without fault. Where the first line described mere innocence, the second describes ability actually tested against weight, a wagon built for burden rather than left empty in a yard, and found sufficient to the task.
This line occupies the second place of the lower trigram Qian, an even position that a yang line, by the standard rule, holds incorrectly, strength resting somewhere the system expects yielding. Commentary treats this line as one of the clearer instances where sheer capacity overrides positional correctness: the wagon does not need to occupy the ideal place to carry its load, only to be strong enough for what is asked of it. The text's explicit reassurance, without fault, exists precisely because the position itself might otherwise raise doubt.
Set within the hexagram's movement, this line marks the point where great possession stops being merely unthreatened and starts being usable, put to work rather than simply held. The wagon that carries a load safely is the picture the rest of the hexagram will build on: abundance justified not by its size but by what it is able, and willing, to bear.