Carrying You (movie- Laputa: Castle in the Sky) *Sob

That day at the recital, one young student played a tune that stirred my emotions.
The song is titled -- "Carrying You" (composed by Joe Hisaishi)
Why is this song so moving? 
That movie is since 1986? (I am watching it over Youtube during lunch today)

https://www.youtube.com/watch?v=655CBltpj9A
(Violin)

If you are very impatient, then just go straight to 2:30min, and tell me if a trumpet could make you cry.
https://www.youtube.com/watch?v=Hstbdf-vOo4
(Joe Hisaishi & New Japan Philharmonic World Dream Orchestra) Trumpet

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Another nice song that day was - "Wait There" (composed by Yiruma)
It is not a sad song, it's probably a love melody.
https://www.youtube.com/watch?v=7OvybHWghLE