What does Ecclesiastes 2:6 mean?

I searched in my heart how to cheer my flesh with wine, my heart yet guiding me with wisdom, and how to lay hold of folly, until I might see what it was good for the sons of men that they should do under heaven all the days of their lives.

I made myself great works. I built myself houses. I planted myself vineyards.

I made myself gardens and parks, and I planted trees in them of all kinds of fruit.

I bought male servants and female servants, and had servants born in my house. I also had great possessions of herds and flocks, above all who were before me in Jerusalem;

I also gathered silver and gold for myself, and the treasure of kings and of the provinces. I got myself male and female singers, and the delights of the sons of men—musical instruments, and that of all sorts.

So I was great, and increased more than all who were before me in Jerusalem. My wisdom also remained with me.