Because it is not easy to keep things that begin with enthusiasm and naivety in harmony with yourself. It is quite a job to get everything going. Once things are moving and you start to get used to the benefits, it is hard to keep things in balance. It may be at the expense of friendships, people or nature. It is imperative that it becomes bigger and bigger. Stagnation means decline. Can this be sustained? Will everything grind to a standstill or can you slow it down yourself?