Everything you do is a balloon is one of my favourite songs by boards of canada. The introductory melody is quite melancholy and I often find it difficult to listen to, but when the song gets going its becomes much more uplifting and positive.
For me, the song evokes a feeling of loss, maybe tied to childhood, a part of your life that is fleeting and transient. It may also refer to the fleeting and transient nature of actions / events in our lives. Once the moment has occurred, thats it - its gone, just a memory, floating off and fading away.
Mike from the band talks about this in his interview with the NME “Being a kid is such a transitory, fleeting part of your lifespan. If you have siblings, then if you think about it, you’ll have known them as adults for a lot longer than you ever knew them as children. It’s like a little kid lost, gone”.
Anyway, have a listen and see what you think.