Taking this as a lesson tells us that we should learn to benefit from the experience of others and learn important lessons from their successes and failures. We can get inspiration from other people's experiences and use them to help us better understand the real world. For example, we can learn from the behavior of ourselves and others, so as to better cope with the difficulties in daily life. Only when we pay attention to the current challenges and learn from others can we go further, faster and more successful.
Finally, taking this as a mirror means that we need to look at the past, learn to understand what happened to us, and use the past experience to better pave the way for the future. History is the best teacher. In fact, it is a heavy book left by nature. Only when we carefully examine what happened in history can we truly understand our environment and prepare for the future. Therefore, we should keep this sentence in mind and integrate it into our lives in order to better explore our own life path.