The macabre might, in part, be a rejection of the Enlightenment and yet another route to re-energize the right hemisphere and its embrace of the trans-rational, much as the occult is a rejection of rationalism and its left hemispheric overlord.
The Gothic genre is particularly suited to depicting these elements. This genre emerged as a knee-jerk reaction to the Enlightenment, expressing a desire for something beyond that which is observable and scientifically quantifiable.