5864. Having heard that spirits are present with a person, evil spirits have imagined that they could therefore meet those spirits, and with them that person. They have also looked for them for a long time, but without success, their intention being to destroy them. For just as the delight and bliss of heaven consist in doing what is good to a person and contributing to his eternal salvation, so conversely does the delight of hell consist in doing ill to a person and bringing about his eternal ruin, so that heaven and hell have contrary motivations.