Philipus Aureolus Paracelsus
That which the dream shows is the shadow of such wisdom as exists in man, even if during his waking state he may know nothing about it... We do not know it because we are fooling away our time with outward and perishing things, and are asleep in regard to that which is real within ourself.
Thoughts give birth to a creative force that is neither elemental nor sidereal. Thoughts create a new heaven, a new firmament, a new source of energy, from which new arts flow. When a man undertakes to create something, he establishes a new heaven, as it were and from it the work that he desires to create flows into him. For such is the immensity of man that he is greater than heaven and earth.