Spring: Acrostic

The now green mountain smiles
First thing I hear are those birds singing
Day breaks with a flash of ghastly light
Of the narrow slits I see through
Spring in my step as I enter the gates
Already I see the frowns turn upside down
I imagine the blue water ; flowing
Am i allowed to just stay here?
Dreading that dark room with each second
The mind switches to manuel, oops...
Last time i was here...
Day seems to take forever to present itself
Of my time I seem to love this the most
Autumn colours take me away