'Youthful Folly has success' down to 'importunity brings no information.' Sub-commentary: Meng is the name for being obscure, dim, and weak. When all things are naive and dim, their only wish is to achieve smooth success, hence 'Youthful Folly has success.'
'It is not I who seek the youthful fool; the youthful fool seeks me': since things are dim and weak while wishing to achieve success, the enlightened do not seek out the dim.
That is, it is not I, with lofty and bright teacherly virtue, who go to seek the darkness of the youthful fool; rather, the dim seek the enlightened, and the enlightened do not consult the dim, hence 'the youthful fool seeks me.'
'The first divination informs': 'first' is the word for the very beginning; 'divination' is the means to resolve doubt. When the youthful fool comes to seek me, I should resolve and inform him with the single principle of his initial inquiry.
'Two or three times is importunity; importunity brings no information': if the master hesitates and is undecided, offering a second or third explanation, it becomes disrespectful importunity; if importunate, he does not inform.
The youthful fool comes to ask fundamentally to resolve doubt; if the teacher answers with broad, conflicting, or repetitious explanations, the youthful fool hearing them will become even more confused and disordered, so it is better not to inform.
Everything above explains the meaning of 'Youthful Folly has success.' Only by according with the matters above can 'success' be attained; hence the word 'success' appears above these matters.
It does not mention 'primal' (yuan) because in a time of naive weakness, primal greatness has not yet emerged.
Commentary on 'the first divination informs': Sub-commentary: 'The first divination informs' means that when the youthful fool comes to seek me, I should dissect and explain it with a single principle based on the intent of his initial divination.
'Two or three times is importunity; importunity confuses' means that if one discards this initial intent, wavers in hesitation, and offers divergent interpretations, the youthful fool hearing it will find it insolent and chaotic.
Hence 'two or three times is importunity; importunity confuses.' 'Who but the second line is capable of answering the first divination?'
derives from the Commentary on the Judgment: 'The first divination informs, through firmness and the center'; because the second is firm and central, we know it refers to the second. 'It is advantageous to be steadfast.' Sub-commentary: Zhen means correctness.
This expresses that the significance of Youthful Folly lies in the advantage of cultivating correctness; hence the Commentary on the Judgment says, 'Cultivating correctness in the ignorant is the work of creating sagehood.'
If one attempts to cultivate correctness through overt brilliance, the true path is lost.
Commentary on 'Yet if one attempts to cultivate correctness through overt cleverness, the true Dao is lost': Sub-commentary: This means that although a person harbors sage virtue, if he keeps silent and concealed, others cannot fathom his depth nor gauge his magnitude; thus sage virtue remains profound and unfathomable.
If he flaunts his virtue and exposes his own brilliance, others will know what he does and discern his depth.
Hence the commentary on Darkening of the Light says: 'Approaching the multitudes with darkening of the light; if one's brilliance is displayed externally, cunning people will find ways to evade it.' This Gua and the Great Treatise both elucidate this through human affairs.