I translated it casually. It's hard to fall asleep after reading a broken poem. I always feel that residual poetry is my life after tossing and turning. Things change, and how much sorrow flows away with the years. Although he is old, he is still the boy in purple with a young heart.
This poem probably means that the poet feels life from the residual poems, with helplessness and happiness. Things are unpredictable, and years are impermanent. As long as there is a teenager's heart, there is innocence everywhere.