似水流年

The older we've got, the more things from the past return to our mind, even if it is merely emptiness, sometimes.
The following song is the best recording that I have done recently. I like this song. I like its way of keep flowing and seemingly never ending as reincanation...It reminds me of a circular story that I have heard very often in my childhood. It goes like this:
从前有座山，
山里有个洞，
洞里有座庙，
庙里有个和尚写文章。
写的是什么？
写的是：
从前有座山，
山里有个洞，
......
The key which makes it circular, is the question mark.