We carry our past with us, to wit, the primitive and inferior man with his desires and emotions, and it is only with an enormous effort that we can detach ourselves from this burden. If it comes to a neurosis, we invariably have to deal with a considerably intensified shadow. And if such a person wants to be cured it is necessary to find a way in which his conscious personality and his shadow can live together.

Psychology and religion: West and East (ed. 1958)