The never-fading Magnolia is the eternal spring that the girl named Liu Yang gave us.
The never-withering magnolia refers to the silk magnolia sent by Liu Yang. The author's wife said that the magnolia blooms, which means that spring is coming. Spring is the season for the author's wife to have a bone marrow transplant, so spring also represents the hope of the author and his wife. "Eternal spring" means "Eternal hope" and also symbolizes blessing and happiness.