Hexagram 2, Kūn (The Receptive): Line 3
坤卦六三 · 坤为地 · 中文版
六三：含章可贞。或从王事，无成有终。
The line (Legge)
The third SIX, divided, (shows its subject) keeping his excellence under restraint, but firmly maintaining it. If he should have occasion to engage in the king's service, though he will not claim the success (for himself), he will bring affairs to a good issue.
Small Image commentary
'He keeps his excellence tinder restraint, but firmly maintains it:' - at the proper time he will manifest it. 'He may have occasion to engage in the king's service: - great is the glory of his wisdom.
象曰：含章可贞，以时发也。或从王事，知光大也。
In plain words
Holding one's qualities within, one can remain steadfast. Perhaps one serves the king: without claiming the success, one brings things to a good end. "Qualities" means talent and virtue; holding them within means having ability without showing it off. The Small Image says they come out when the time is right, and that serving the king shows a broad wisdom.
Applying it to your situation
If you are helping someone else get something done, this line suggests putting your skill into doing it well and not hurrying to put your name on it. Which of your abilities could you hold back for now, until a better moment?
Position
A broken (yin) line in the third place, which is a yang (odd) place, so it is not in its proper place. Its partner is line 6; both are yin, so they do not respond.
If this line moves
With this line moving alone, Kūn changes into Hexagram 15 Qiān (Modesty). The Jiaoshi Yilin verse for this change (Chinese): 焦氏易林·坤之谦.
The hexagram
Hexagram 2 Kūn (The Receptive). The Judgment: Kun (represents) what is great and originating, penetrating, advantageous, correct and having the firmness of a mare. When the superior man (here intended) has to make any movement, if he take the initiative, he will go astray; if he follow, he will find his (proper) lord. The advantageousness will be seen in his getting friends in the south-west, and losing friends in the north-east. If he rest in correctness and firmness, there will be good fortune.
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English text: James Legge, The Yi King (Sacred Books of the East, vol. 16, 1882), public domain, as transcribed by the Chinese Text Project. Chinese: the received text. Offered for study and reflection, not as prediction. Plain-English readings and position notes by this site.