We subjectively emphasise the one beat and then the other, as the two following rows of notes show:-- [Illustration] This diagram represents the separate beats by notes, and the accent shows those beats that are subjectively emphasised. Row A shows an ascending beat, and row B a descending one. Now if it happens that we can at will hear into the beats of the metronome an ascending or a descending beat (A or B), i.e. we can hear one and the same beat now emphasised and now unemphasised, then we may regard the instrument as suitable for all the psychological experiments to be described in the following pages. Although the experiment described was only meant to serve as a test for the metronome, yet we can derive from it a remarkable psychological result. For we notice in this experiment that it is really extraordinarily difficult to hear the beats in absolutely the same intensity, or, to put it in other words, to hear unrhythmically. Again and again we recur to the ascending or descending beat. We can express this phenomenon in this sentence: Our consciousness is rhythmically disposed. The reason of this scarcely lies in a specific quality, peculiar to consciousness alone, but it clearly stands in the closest relationship to our whole psycho-physical organisation. Consciousness is rhythmically disposed, because the whole organism is rhythmically disposed. The movements of the heart, of breathing, of walking, take place rhythmically. In a normal state we certainly are not aware of the pulsations of the heart, but we do feel the movements of breathing, and they act upon us as very weak stimuli. Above all, the movements of walking form a very clear and recognisable background to our consciousness. Now our means of locomotion are in a certain sense natural pendulums, the movements of which generally follow with a certain regularity, as with the pendulum of the metronome. Therefore whenever we receive impressions in consciousness at similar stated intervals, we arrange them in a rhythmical form similar to that of our own outward movements. The special form of rhythm, ascending or descending, is within certain limits left to our own free choice, just as with the movements of locomotion, which may take the form of walking, of running, of jumping, and lastly of all different kinds of dances. Our consciousness is not a thing separated from our whole physical and mental being, but a collection of the contents that are most important for the mental side of this being.