The ego which has discarded all ethical bonds feels itself at one with all the demands of the sexual impulse, those which have long been condemned by our æsthetic training and those which are contrary to all the restraints imposed by morality. The striving for pleasure—the libido, as we say,—chooses its objects unchecked by any inhibition, preferring indeed those which are forbidden: not merely the wife of another man, but, above all, the incestuous objects of choice which by common consent humanity holds sacred—the mother and the sister of men, the father and the brother of women. (Even the dream of our fifty-year-old lady is an incestuous one, the libido being unmistakably directed towards the son.) Desires which we believe alien to human nature show themselves powerful enough to give rise to dreams. Hate, too, rages unrestrainedly; wishes for revenge, and death-wishes, against those who in life are nearest and dearest—parents, brothers and sisters, husband or wife, the dreamer’s own children—are by no means uncommon. These censored wishes seem to rise up from a veritable hell; when we know their meaning, it seems to us in our waking moments as if no censorship of them could be severe enough. Dreams themselves, however, are not to blame for this evil content; you surely have not forgotten that their harmless, nay, useful, function is to protect sleep from disturbance. Depravity does not lie in the nature of dreams; in fact, you know that there are dreams which can be recognized as gratifying justifiable desires and urgent bodily needs. It is true that there is no distortion in these dreams, but then there is no need for it, they can perform their function without offending the ethical and æsthetic tendencies of the ego. Remember, too, that the degree of distortion is proportionate to two factors: on the one hand, the more shocking the wish that must be censored, the greater will be the distortion; but it is also great in proportion as the demands of the censorship are severe. Hence in a strictly brought up and prudish young girl, a rigid censorship will distort dream-excitations which we medical men would have recognized as permissible and harmless libidinous desires, and which the dreamer herself would judge in the same way ten years later.