Original video located here. Accessed 6th November 2017
Song title: Kimi wo Nosete / Carrying You
Artist: Azumi Inoue
Year: 1986
Why I like this song:
You always remember the first time you encounter something new. Whilst Castle in the Sky was not the first Ghibli movie I came across - that honour goes to Grave of the Fireflies - it was the first Ghibli movie directed by Miyazaki I came across and it has stayed with me ever since.
And this song really puts forth the notion of travelling far and wide in search of missing civilisations. If I need to go on a journey filled with adventure and tragedy then this is what I want playing in the background (although why anyone would actively go out and search of tragedy is beyond me....)