The Freudian views of the unconscious are no longer reflective of the views modern psychologists have adopted. Freud focused greatly on the primitive desires, and made many associations with sex.

The unconscious part that you are speaking of would be the id. This, in his theory of the psyche, is where we get the primal urges of which you are speaking. I am sure you know this though, based on the site you posted.

Many psychologists no longer believe this particular theory. Though, the basic concept is still applied, the Freudian way of viewing it is not so completely accepted. Some now see it as a collection of information, both explicit (that we are aware of) and implicit (that which we are not aware). Furthermore, it would be deeper in the mind, where critical doubt and worries, among other things, are not infiltrating and corrupting the bank of information our unconscious has. It would be something of a higher-mind. I don’t know if I would say it is wise, but I would say it is well-informed and can likely concentrate on information better than I, or others, can in the conscious state.