A querent drawing six in the second place is generally surrounded by a collective feeling, an office consensus, a market mood, a family expectation, and is being told that their advantage lies in not sharing it. The reading is favourable and rests on two instructions that must be taken together. Stay unmoved by the enthusiasm, and act on what that detachment lets you see, without letting the day go by first.
The value of the position is that it is central and correct in a hexagram where almost nothing else is. Whatever the querent perceives about the situation is likely to be accurate, and the reading gives unusual licence to trust an early impression that others do not yet share. What it does not licence is arguing the point. This line persuades nobody and attempts nothing collective; it simply declines to be moved, and moves itself in good time.
The failure mode is delay, which is why the text bothers to specify that the day is not waited out. An accurate reading of a situation loses its value the moment everyone else reaches it, and a querent who sees early and waits for confirmation ends up acting on the same information as everyone else, at the same time, at a worse price. Perception is treated here as something with an expiry, and the good fortune belongs to acting while it is still worth something.