Whereas all the human sciences advance towards the unconscious only with their back to it, waiting for it to unveil itself as fast as consciousness is analysed, as it were backwards, psychoanalysis, on the other hand, points directly towards it, with a deliberate purpose not towards that which must be rendered gradually more explicit by the progressive illumination of the implicit, but towards what is there and yet is hidden, towards what exists with the mute solidity of a thing, of a text closed in upon itself, or of a blank space in a visible text, and uses that quality to defend itself.