The word nation conjures up many different ideas and emotions depending on the context you use it in. For example I am a Canadian, Canada is the nation in which I live. Canadians by in large tend to be pretty ambivalent about nationhood, we are proud but not so much that we feel the need to constantly thump our chests and yell it to whom ever is listening.
There are other more closely held affiliations that consider themselves nations, take for example the Aryan Nation, or the Nation of Islam. Both of these groups consider themselves nations based on an ideology. I can proudly say that I am not a member of either of those nations. Much too demanding and pigeonholed in their world view for my liking.