Summary
This quote suggests that every era has its own unique perspective or focus, similar to looking through a keyhole that limits one's view. It implies that people's attention and interests are guided by the prevailing concerns or events of their time. Each generation has a particular lens through which they perceive the world, and their perceptions are shaped by the issues and trends that are most prominent during that period. It highlights the idea that society's collective gaze is influenced by the present circumstances and context.