Hexagram 62, Xiǎo Guò (Small Exceeding): Line 4
小过卦九四 · 雷山小过 · 中文版
九四：无咎，弗过遇之。往厉必戒，勿用永贞。
The line (Legge)
The fourth NINE, undivided, shows its subject falling into no error, but meeting (the exigency of his situation), without exceeding (in his natural. course). If he go forward, there will be peril, and he must be cautious. There is no occasion to be using firmness perpetually.
Small Image commentary
'He meets the exigency (of his situation), without exceeding (the proper course):' - (he does so), the position being inappropriate (for a strong line). 'If he go forward, there will be peril, and he must be cautious:' - the result would be that his course would not be long pursued.
象曰：弗过遇之，位不当也。往厉必戒，终不可长也。
In plain words
No fault: meeting it without going too far. Going on is dangerous and calls for warning; do not hold on for long. The fourth line is yang in a yin place, strong but flexible, and so without fault, but it should not push forward. The Small Image says its position is improper, and going on calls for warning because it cannot last.
Applying it to your situation
If you happen to be at a point of balance, this line suggests staying alert and not rushing ahead. What do you need to watch to keep your balance?
Position
A solid (yang) line in the fourth place, which is a yin (even) place, so it is not in its proper place. Its partner is line 1; one is yin and the other yang, so they respond to each other.
If this line moves
With this line moving alone, Xiǎo Guò changes into Hexagram 15 Qiān (Modesty). The Jiaoshi Yilin verse for this change (Chinese): 焦氏易林·小过之谦.
A recorded case from Takashima
Xiao Guo to Qian (Modesty): ask small, not large: A friend about to borrow money received the fourth line of Xiao Guo, "no fault; meeting him without passing by; going on is dangerous, be careful". Takashima said the lender was the fifth line right beside him, and he should not go past him to anyone else; the fifth line's "dense clouds, no rain" meant a large favour was unlikely, but "shooting and taking it in the cave" meant a small one would come. Going past the fifth would bring nothing and put him at risk.
The hexagram
Hexagram 62 Xiǎo Guò (Small Exceeding). The Judgment: Xiao Guo indicates that (in the circumstances which it implies) there will be progress and attainment. But it will be advantageous to be firm and correct. (What the name denotes) may be done in small affairs, but not in great affairs. (It is like) the notes that come down from a bird on the wing - to descend is better than to ascend. There will (in this way) be great 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.