My plane lands in Houston, Texas. I have never been in Texas before. It doesn’t look much different from many other cities but what catches my eye is the Houston Astrodome. I have seen it on television many times but here I am flying directly over it now. It was once known as the eighth wonder of the world but now it is an aging relic, a monument to a time that has passed. Life is like that. We make our mark and then that mark is covered by the sands of time and change. The Dao sees to it that it occurs.