It's known as the Literary Tone. Hope I helped !
Heart that fed: And on the pedestal these words appear: 'My name is Ozymandias, king of kings: Look on my works, ye Mighty, and despair!' Nothing beside remains. Round the decay Of that colossal wreck, boundless and bare The lone and level sands stretch far away.
I would say it’s about using your life usefully. In other words, the summary is about “Making use of one’s life”.
Hope it helps!
Answer:
Because they wanted a better life
