We are still living under the reign of logic: this, of course, is what I have been driving at. But in this day and age logical methods are applicable only to solving problems of secondary interest. The absolute rationalism that is still in vogue allows us to consider only facts relating directly to our experience. Logical ends, on the contrary, escape us. It is pointless to add that experience itself has found itself increasingly circumscribed. It paces back and forth in a cage from which it is more and more difficult to make it emerge. It too leans for support on what is most immediately expedient, and it is protected by the sentinels of common sense. Under the pretense of civilization and progress, we have managed to banish from the mind everything that may rightly or wrongly be termed superstition, or fancy; forbidden is any kind of search for truth which is not in conformance with accepted practices. It was, apparently, by pure chance that a part of our mental world which we pretended not to be concerned with any longer -- and, in my opinion by far the most important part -- has been brought back to light. For this we must give thanks to the discoveries of Sigmund Freud. On the basis of these discoveries a current of opinion is finally forming by means of which the human explorer will be able to carry his investigation much further, authorized as he will henceforth be not to confine himself solely to the most summary realities. The imagination is perhaps on the point of reasserting itself, of reclaiming its rights. If the depths of our mind contain within it strange forces capable of augmenting those on the surface, or of waging a victorious battle against them, there is every reason to seize them -- first to seize them, then, if need be, to submit them to the control of our reason. The analysts themselves have everything to gain by it. But it is worth noting that no means has been designated a priori for carrying out this undertaking, that until further notice it can be construed to be the province of poets as well as scholars, and that its success is not dependent upon the more or less capricious paths that will be followed.