This metaphor can be applied to human life. When we experience negative emotions such as failure, loss and loss of hope, if we can get back on our feet and find hope and motivation again, it means that we have won eternal life. Even if we encounter difficulties and challenges in life, as long as we can make unremitting efforts to find the direction of progress again, then we can transcend the time limit and reach the realm of immortality.
In short, the meaning of the sentence "May the dead tree be reborn as eternal life" tells us that no matter what difficulties we encounter in life, as long as we can make unremitting efforts to find the direction of progress again, then we can achieve eternal life and reach the realm beyond time.