It's very helpful to reflect on the way we experience change in the course of our human life, including our own aging and death. But even more freeing is discovering the direct insight into the momentary arising and passing of all phenomena through our practice of mindful observation.
Although humans have a bias toward falsely seeing permanence, we can develop the insight into the truth of impermanence. In the depths of meditation, we are able to discern the moment to moment dissolution of our experience at the six sense doors.