Because we have for millenia made moral, aesthetic, religious demands on the world, looked upon it with blind desire, passion or fear, and abandoned ourselves to the bad habits of illogical thinking, this world has gradually become so marvelously variegated, frightful, meaningful, soulful, it has acquired color

 - but we have been the colorists: 

it is the human intellect that has made appearances appear 

and transported its erroneous basic conceptions into things