The mind develops memory ideas and imaginative ideas; in the moving pictures they become reality.

The mind concentrates itself on a special detail in its act of attention; and in the close-up of the moving pictures this inner state is objectified.

The mind is filled with emotions; and by means of the camera the whole scenery echoes them.

Even in the most objective factor of the mind, the perception, we find this peculiar oscillation.

We perceive the movement; and yet we perceive it as something which has not its independent character as an outer world process, because our mind has built it up from single pictures rapidly following one another.