There are four cardinal points in the world, etc. The north point God
created but left unfinished; for, said He, "Whoever claims to be God,
let him come and finish this corner which I have left, and thus all will
know that he is God." This unfinished corner is the dwelling-place of
the harmful demons, ghosts, devils, and storms.
THE MIDRASHIM, _Pirke d'Rab. Eliezer_, chap. 3.