Ecclesiastes 2:4 Meaning

2I said of laughter, It is mad: and of mirth, What doeth it?

3I sought in mine heart to give myself unto wine, yet acquainting mine heart with wisdom; and to lay hold on folly, till I might see what was that good for the sons of men, which they should do under the heaven all the days of their life.

4I made me great works; I builded me houses; I planted me vineyards:

5I made me gardens and orchards, and I planted trees in them of all kind of fruits:

6I made me pools of water, to water therewith the wood that bringeth forth trees: