What is the writer's purpose in writing the article​

Hamlet: ] it will but skin and film the ulcerous place, whiles rank corruption, mining all within, infects unseen. confess yourself to heaven; repent what’s past; avoid what is to come; and do not spread the compost on the weeds to make them ranker. —hamlet, william shakespeare what is the central motif in the passage? the passage of time madness disease and decay gardening

Which of the fallowing is true about plays

What is hamlet pondering at the beginning of act 3?