In my actual imaginative contact with life, I am vastly more responsive to beauty than to horror—indeed, I never experience real cosmic horror except in infrequent nightmares. However, when I come to record my various imaginative experiences, I generally find that only the horror items have any uniqueness or originality. Others have seen the same beautiful things that I have seen, & have sung them more nobly. Dunsany, indeed, has said exquisitely almost everything I could possibly wish to say; so that when I indulge in sheer phantasy I can do no more than imitate him. Thus horror alone is left as my peculiar kingdom, & in it I must hold my lowly reproduction of a Plutonian court.

Letter to Elizabeth Toldridge (8 March 1929), in Selected Letters II, 1925-1929 edited by August Derleth and Donald Wandrei, pp. 316-317