彼时青涩少年此刻沧海桑田
[bĭ shí qīng sè shăo nián cĭ kè cāng hăi sāng tián]
'From Innocent Youth to Vast Change' contrasts youth and maturity. The title alludes to significant personal growth over time; from naivety and idealism as a young person to wisdom, understanding, and world-weariness in later years.