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.
Timing is the essence of it.
The opposite thing is beautiful if it is in the right time. People understand time differently. Some people see time as cyclical. You are born, you grow, marry, have children, grow old and die. Others have a growth or an assent of man view that we have evolved and need to keep going.