Stratovarius is a Finnish power metal band that formed in 1984. To this day the band has sold over 2.5 million records worldwide.

Forever is a song by Finnish band named Stratovarius. The real meaning of this song is about a person who is living in all memories. He regrets his life, youth, and he desires to come back his happy childhood when there was no sorrow and he walked through the green fields with the sunshine. Whenever we have to face the difficulties, suddenly we fall in the moment of nice childhood, and then a special feeling is deep inside without speaking in words.

This is the message that Stratovarius wants to send to you through the sad melody of the song Forever.

Source
Here’s lyric:

I stand alone in the darkness
The winter of my life came so fast
Memories go back to childhood
To days I still recall

Oh how happy I was then
There was no sorrow there was no pain
Walking through the green fields
Sunshine in my eyes

I'm still there everywhere
I'm the dust in the wind
I'm the star in the northern sky
I never stayed anywhere
I'm the wind in the trees
Will you wait for me forever?