What is the meaning of the phrase 'gilded tombs do worms infold?

The phrase "gilded tombs do worms infold" suggests that outward appearances of wealth and beauty can be deceiving. Despite being adorned and luxurious, such tombs ultimately conceal decay and mortality, as they are still subject to the same fate as anything else: deterioration. This line emphasizes the idea that material wealth and status do not prevent death or the inevitable process of nature, highlighting the transient nature of life.