Just a figment of his imagination?

No, what you see is the works of God so he can't be...he made everything :)

We have mass and occupy space, so we are here.

It depends on what you mean, "just an imagination"... If you mean religiously, then yes... God created us in his image, god has no image, he's everwhere, so how could he 'build' us to see everything...

Weapons of mass destruction in Iraq prior to the last war.

Religion has very many definitions. A religion can incorporate a supreme being, but people would argue it is not part of their imagination. Religions revolving about nature and the superiority of...