What is the id according to Freud?

What we usually call the 'Ich', 'I', 'Ego', is in fact rather passive in our lives. Freud states that we don't really 'live', but we 'are lived', by dark and unknown forces that dwell in the irrational and primitive void he reffers to as the 'Es', the 'Id', in which the libido rules. However, man has to conquer the 'Es'. Freud: "Wo Es war, soll Ich werden". The 'I', that arises out of the 'Es' and is originally driven by the narcistic libido, is confronted with reallity that appears as order and command, as a restriction. It is in this confrontation the 'I' is formed, and in this 'I' man creates the 'Über-Ich', the 'super-ego': a controling instance in the heart of the 'I' that controls impulses and checks if they cope with the norms formed in the confrontation with reallity.