Kandinsky in this book defines the three types of painting; impressions, improvisations and compositions. While impressions are based on an external reality that serves as a starting point, improvisations and compositions depict images emergent from the unconscious, though composition is developed from a more formal point of view. Kandinsky compares the spiritual life of humanity to a pyramid-the artist has a mission to lead others to the pinnacle with his work. The point of the pyramid is those few, great artists. It is a spiritual pyramid, advancing and ascending slowly even if it sometimes appears immobile. During decadent periods, the soul sinks to the bottom of the pyramid; humanity searches only for external success, ignoring spiritual forces.