Well... That is a question that can be answered for yourself. You see... it is all about how you feel and what you are trying to say with your music. Some songs have barely any words and others tell a novel. Yet they all express some sort of feeling or message (regardless of how stupid the song is). I liked the the song writing outline that schmange provided. I have seen that before. It is good.
The best thing you can do for your music is to play serious.