Financial experts face the market, observe its shape, analyze its meaning, correlate with current trends, and predict its trend. They buy when the price is the lowest and sell when the price is the highest. Their mentality is like a mountain. Steady, yet as fickle as water (it can be understood that the trend of the market changes constantly, and the analysis of experts also changes accordingly). He is well aware of the law that when the capital market falls, it must rise, and when it rises, it must fall. Sadness (nothing, no self) comes from Yueyang Tower, which means as if you are staying out of things, here it means that the mood is not affected by ups and downs). Use a normal mind as your creed to rise and fall in the financial ocean (the following content is a bit mysterious and confusing, and it is a bit difficult to translate).
In short, this mysterious classical Chinese passage means to maintain a calm mind in the ever-changing capital market and follow the rules of rise and fall.