It doesn't look like the Lord is King of anything. There is the struggle that is ours. God had has made this a burden for us. He has made it harder for us. Life is meaningless.
Pessimists have a more realistic view of life because everything ultimately comes to nothing.
From dust we came and dust we shall return. 3 speaks to the importance of timing in life. Everything is beautiful in time. Not all the time but at a time. There is a time to build walls and a time to tear them down.