A few years ago, I asked a neighborhood handyman to build a tree-house in my backyard. In part, this was to solve a problem: my children were good friends with the children who lived beside us and they liked to climb over the fence that separated the two yards. We could have just put a gate into the fence, but I decided that building some kind of climbable structure around the large fir tree in the yard, which also included a staircase into the neighbor's yard, was a more creative solution to the problem, and I liked the idea that the tree-house would also serve to join the two play spaces together.
The handyman took the task much more seriously than I had expected. He made drawings, built small wooden models, and even held a kind of "visioning" exercise with the children and their parents to make sure that he hadn't missed any important details. At the end of our lengthy discussions, he asked, "Where would you like me to put the beer rail?"
The question took me aback as I hadn't really considered the possibility that a nice play structure in my yard might also facilitate beer consumption among the neighborhood children, but I quickly tuned in to the fact that our designer had intuited what should have been obvious to me- the children wouldn't be the only ones to take advantage of this platform up among the branches of the beautiful old tree. And, indeed, over the years that I lived in that house I discovered that the platform made a pretty good perch (栖息处), not only for the occasional cold beer, but also for sitting and dreaming, reading a book, enjoying a picnic or even getting some writing done. My children enjoyed climbing around in the tree-house, playing tag, setting up imaginary pirate ships and fortresses (城堡), and they also used it for some quiet thinking and even the occasional math homework. The tree seemed to be a particularly good algebra tutor.