What does the Queen's speech about Ophelia's drowning suggest about her madness and the reasons for her death?
Well, rather than suggesting these things, some of what the speech says is quite direct: the queen says that Ophelia drowned because she could not bear her own "distress"—that she killed herself because she was too sad, and too upset.
The madness, though, is a more complicated question. This the queen links to a kind of transformation, as if by turning mad Ophelia was partially mythological and partially animal, like she's stuck between worlds. Like the ghost, in other words.