Thy beauty shall no more be found,
nor, in thy marble vault shall sound
my echoing song: then worms shall try
that long-preserved virginity,
and your quaint honour turn to dust,
oa
the mistress's body will be in a coffin after her death, where it will turn into a marble statue.
ob.
it will be impossible to preserve the mistress's honor after her death because her body will turn to dust.
oc
the mistress's desire to preserve her honor and chastity makes no sense because her body will be devoured by worms after
her death.
od.
the mistress will still be able to hear the songs of love after death and will be united with her lover after his death.