I've seen many references to subspace. When I find information about it, it seems that it has to do with an endorphin high that either allows the sub only to focus on the scene &/or his/her partner, or blurs their focus in some way that limits it to the scene, etc. First of all, do I have a basic idea of what this is? Second of all, I've also seen it referred to as something you need to be cautious of. Isn't subspace a good thing? Are there dangers I'm not aware of regarding sub space?

Sometimes I really hate being a newbie at things.