Lyric discussion by greened 

Cover art for Fabulous Day lyrics by Essex Green, The

I think this song is about the predictableness, and unpredictableness of life. One moment, it's all the same, every day, the same. Another, it's completely different.

OR, it could be about a guy who's been infatuated with a girl. He's saying the great things that happen, and how everything is mixed up.