The Muse

What is it about overcast days?
The sullen, grey pall,
the thick clouds
that won't let the sun break through
onto the brooding landscape
and all you see
are closed houses and
the lone human figure
on the streets.
Or days when the skies open
and rain falls in sheets,
battering your windows
and the delicate,
vibrant petals of plants
you'd gone to such pains
to help flower..

What is it about days like these
that waken my inner muse?