The palace is made of glass and thus they believe they see what lives outside of it. The palace is clean; it gleams in sunlight and glitters in rain. There is no bad weather when all weather can be beautiful.
But a storm forms outside the palace. Truly, outside. Over there. Though they see it, though they lament the flood it will cause beyond their doors, they do not feel the lashing of the wind. The hail is as jewels tap dancing against their palace.
It is sad, the flood outside their doors, but in an abstract kind of way. Temporarily.
The palace is made of glass and thus they do not see those drowning outside it.