Omission, modification, regrouping of material—these then are the modes of the dream-censorship’s activity and the means employed in distortion. The censorship itself is the originator, or one of the originators, of distortion, the subject of our present enquiry. Modification and alteration in arrangement are commonly included under the term ‘_displacement_.’ After these remarks on the activities of the dream-censorship, let us turn our attention to its dynamics. I hope you are not taking the expression “censorship” in too anthropomorphic a sense, picturing to yourselves the censor as a stern little manikin or a spirit, who lives in a little chamber of the brain and there discharges the duties of his office; and neither must you localize it too exactly, so that you imagine a “brain-centre” whence there emanates a censorial influence, liable to cease with the injury or disappearance of that centre. For the present we may regard it merely as a useful term by which to express a dynamic relationship. This need not hinder us from asking what sort of tendencies exercise this influence and is it exercised upon; and further, we must not be surprised to discover that we have already come across the censorship, perhaps without recognizing it. Indeed this has actually happened. Remember a surprising experience we had when we began to apply our method of free association: we discovered that our efforts to penetrate from the dream-element to the unconscious thought proper for which the former is a substitute encountered a certain _resistance_. The strength of this resistance, we said, varies, being sometimes enormous and at other times very slight. In the latter case we need only a few connecting-links for the work of interpretation; but where there is great resistance we are compelled to go through long chains of associations, which carry us far from the initial idea, and on the way we have to overcome all the difficulties of professedly critical objections to associations arising. That which we encountered as resistance in the work of interpretation we now meet again as the censorship in the dream-work: the resistance is simply the censorship objectified; it proves to us that the power of the censorship is not exhausted in effecting distortion, being thereby extinguished, but that the censorship remains as a permanent institution, the object of which is to maintain the distortion when once it has been achieved. Moreover, just as the strength of the resistance encountered during interpretation varies with each element, so too the degree of distortion effected by the censorship is different for each element of a whole dream. A comparison of the manifest and the latent dream shows that certain latent elements are completely eliminated, others more or less modified, and others again appear in the manifest dream-content unaltered or perhaps even intensified.