Hexagram 50, Dǐng (The Cauldron): Line 6 (top)
鼎卦上九 · 火风鼎 · 中文版
上九：鼎玉铉，大吉，无不利。
The line (Legge)
The sixth NINE, undivided, shows the caldron with rings of jade. There will be great good fortune, and all action taken will be in every way advantageous.
Small Image commentary
'The rings of jade' are at the very top: - the strong and the weak meet in their due proportions.
象曰：玉铉在上，刚柔节也。
In plain words
The cauldron has a carrying bar of jade: great good fortune, nothing unfavourable. Jade is warm yet hard, a picture of firm and gentle together. The top line is the end of the hexagram: firm but able to be gentle, the cauldron's work is complete. The Small Image says firm and gentle are in measured balance.
Applying it to your situation
If your work has matured, this line suggests keeping firmness and gentleness together. Where should you be gentler, and where firmer?
Position
A solid (yang) line in the top place, which is a yin (even) place, so it is not in its proper place. Its partner is line 3; both are yang, so they do not respond.
If this line moves
With this line moving alone, Dǐng changes into Hexagram 32 Héng (Duration). The Jiaoshi Yilin verse for this change (Chinese): 焦氏易林·鼎之恒.
The hexagram
Hexagram 50 Dǐng (The Cauldron). The Judgment: Ding gives the intimation of great progress and success.
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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.