Laputa: Castle in the Sky (天空の城ラピュタ）

In Miyazaki's Works, envery one feels "Dream", I suppose.
I myself also feel the same. Regarding Laputa: Castle in the sky,
Laputa: Castle in the Sky (天空の城ラピュタ, Tenkū no Shiro Rapyuta) (re-titled Castle in the Sky for release in the United States) (in English, literally translated as The Sky's Castle: Laputa) is a film written and directed by Hayao Miyazaki, released in 1986.
                    
It is the first film created and released by Studio Ghibli, although is considered the second by some since Nausicaä of the Valley of the Wind was created by the founding members two years before. Laputa: Castle in the Sky won the Animage Anime Grand Prix in 1986. The name Laputa comes from the name of the floating island in Johnathan Swift's novel Gulliver's Travels.
Please enjoy the Video provided by YouTube regarding theme music of Laputa: Castle in the Sky.

According to legend, humans were fascinated with the sky; therefore they created increasingly sophisticated ways of lifting aircraft from the ground. This eventually led to flying cities and fortresses. Over time, the cities came crashing back to the ground, forcing the survivors to live on the ground as before. One city, Laputa, is said to remain in the sky, concealed within the swirling clouds of a violent thunderstorm. While most people consider it to be fictional, some believe the legend is true and have sought to find the ancient city. Airships still remain in common use.
Also please enjoy the Video provided by YouTube below, a part of Laputa: Castle in the Sky.

Aboard an airship, a young girl, Sheeta, is escorted to an unknown destination by sinister-looking agents under Colonel Muska. The ship is attacked by a group of sky pirates; in the resulting disorder, Sheeta takes a small pendant from Muska and escapes. The sky pirates, led by an old but vivacious woman Dola, attempt to seize her and the pendant, but accidentally, Sheeta falls from the ship. As she falls, the pendant radiates a blue light and she gently floats to the ground. A young boy, Pazu, witnesses this in amazement and catches Sheeta. He takes her back to his home, where she finds a photograph of Laputa.

By A.S. 2009