This fable is usually used to describe life. We live in a rapidly changing world like birds. Although we may have found a seemingly stable lifestyle or state, this state is not stable because we can't predict future changes and risks. The fragility and preciousness of life means that we should cherish every day and our interpersonal relationships and experiences, because every moment in life is precious.
In the post-epidemic era, people are more aware of the fragility and preciousness of life. The impact of the epidemic shows the fragility of life, because life can disappear in an instant. At the same time, the epidemic also makes people cherish life more, because life is so precious and irreplaceable.
Therefore, the moral of dead trees and dead birds is not only the fragility and preciousness of life, but also a kind of awe and cherish of life.