Can you explain the meaning here?

This is a translated version from Swedish into English, and I don't understand a sentence. Can you explain the meaning of the underlined line?

Darling, summer's coming slowly
I wish you only saw
little Sweden changing shape
houses and streets they are all empty
vacation, and this land is in a state of emergency

A motorway cuts right through the city,
over squares and over concrete
in a sudden storm of hail
forgetting that nights are very short now
my sleep it keeps deceiving me
with my aching heart

(and the summer, it deceives me

with the sadness of my heart)

?
But darling tonight you did return here
and all was then forgiven
in a rare and happy dream
and right then in the moment when I wake up,
the shadow of a hope is still hanging in my rooms

Darling, I know you are awake now
the signal reaching your world,
but it’s met with no reply
in this heat the air is still and deadly
what if you could see now
how the process looses speed

Darling tonight you did return here
and all was then forgiven
in a recycled dream
and right then in the moment when I wake up,
the shadow of a hope is still hanging in my room

?
Darling, I found my way from darkness
there's hope a change might come along
but it will take its time
a new start, and I am thinking new thoughts
but all those things you fell for,
are still a part of me
everything has changed now,
but I still feel the same

?
Darling tonight you did return here
I got all explanations
in a recycled dream
and right then in the moment when I wake up I see
the shadow of hope leaving from my room
the shadow of hope is leaving from my room