Are we locked?

The tree is growing continually against the beautiful blue skyline. The lamp post is sort of a permanent feature on the street. Both have been placed there by man and are pretty to behold. In the foreground, the lock illustrates how man manages his/her perspective. Have we locked ourselves in our understanding and apprecition of nature and the things around us that we might have become like a lamppost that is comfortable in serving its purpose (and stopped growing!) or like a tree which is growing towards new heights? What are some of the areas in our lives that we have locked our perspective and thus hindered our growth in terms of its breadth and depth? Or are we just apathetic and contended with ourselves and choose to avoid risks associated with change? Perhaps we could take the first step to unlock???