Walk down the street and ask 10 people what "spirit" means and you will get 10 different answers. To some, the term has very deep religious connotations. To others, it means to live life with passion. Of course, those two could be related, but not necessarily. It's an interesting thought to ponder.
To me its somewhere in between... a mixture of the two. I guess that is what makes life fun... we are all different and unique. No matter who you are, though, you should live life with vitality. You can even be zany in how you do it.