A not-so-accurate translation. Hopefully someone can give a better translation.
Anyway, it appears that this song is about the death of a lover...
Stretching this loneliness
A single person’s room
There is no one,
There is no voice,
Time doesn’t stop
My senses fade away,
A couple’s room,
There is no one,
There is no voice,
You are no longer here
People are made up of faraway wishes
In the skyscraper,
I cried excessively
Because right now, I feel
that perhaps, slowly,
I want to be with you…
Look up at the sky,
It is a little gloomy
Beyond the distant sky,
A skyscraper can be seen
The place where I used to be with you
It’s now so far away,
From this tall building, everything is engulfed in brightness
A kind voice says
“I’m home,” I heard,
“Welcome back,” I replied
It’s always been like that
I always believed and hoped
It would remain that way
But the heavens have snatched you away
Look up at the sky
Why is it so sorrowful?
Beyond the blurry sky
A skyscraper can be seen
The place where I used to be with you
It’s now so far away
From this tall building, everything is engulfed in brightness
My beloved… “Farewell.”
My beloved… “Farewell, you whom I cannot meet again…” | 
