What I always imagine with this song is something set back in the past, in Brazil, with two people - one who is travelling, one who is native - meeting and falling in love. Unfortunately the traveller had to leave, but they vowed to come back together some day soon. And now many years have passed, and the traveller is now older ('when twilight beams the skies above'), and they have not seen each other since then, but the love remains. The traveller still dreams of someday returning to Brazil for his/her love.
What I always imagine with this song is something set back in the past, in Brazil, with two people - one who is travelling, one who is native - meeting and falling in love. Unfortunately the traveller had to leave, but they vowed to come back together some day soon. And now many years have passed, and the traveller is now older ('when twilight beams the skies above'), and they have not seen each other since then, but the love remains. The traveller still dreams of someday returning to Brazil for his/her love.