Google brought up this site: http://hidebbs.net/bbs/pancyo

I guess it's a song someone wrote? The lyrics are really nice in Japanese, I'm not sure I managed to capture the emotion in english.

That, and the picture is cute, too.

As the painter Baerun says , one of Hatsune Miku's song 歌に形はないけれど . http://www.nicovideo.jp/watch/sm2085047
music & lyric : doriko