(勾陈)…有暗昧或迟滯之象
Gou Chen: there is an image shadiness or slowness (sluggishness).
I don't know exactly who wrote this contemporary Chinese text, but have seen it in the Internet. I do agree with slowness, but not shadiness. Shadiness belongs more to 玄武 Xuan Wu, which is another Animal.
For example, Gou Chen coming with Wealth can mean "fixed time deposit". Yes, it's an interesting application, isn't it? Imagine the slowness and fixed nature of interest income coming from the money deposited in the bank.
Is it shady income? Not at all. Shady money is something like profits that are obtained in smuggling goods, for example. Totally different!