Summary
This quote suggests that when a person typically regarded as balanced and virtuous becomes insane or loses their sanity, their actions can be even more extreme or chaotic than those of someone who is naturally mentally unstable. It highlights the unsettling contrast between the person's previous moral character and their bizarre behavior when they are mentally disturbed. In essence, it implies that witnessing a saintly person unravel in madness can be a particularly unsettling and distressing experience.