This song is dedicated to all the victims of Earthquake/Tsunami in Japan.
“On March 11, 2011, a 9.0 earthquake off the northeastern coast of Japan unleashed a Tsunami of unprecedented magnitude inundating Japan’s eastern coastline that ultimately resulted in a catastrophic nuclear meltdown and left tens of thousand people dead or missing in its wake. ” Ribbon For Japan

Chorus Part of the song: 

Sora Takaku Mai agare   (Fly high to the Sky)
Sora =  Sky
Takaku = higher
Mari agare = Fly high /go up

ex> Sora wa kirei (The sky is beautiful )
Sky Tree wa Takai (Sky Tree is high)