Umm, I think it just arouse and guide people to think and feel death by watch a short video. Prepare different experimental chamber about different scenario, one room may just for or five seats. And in the experimental room, we can install monitor to remember their expression and behavior on experimental process. Then, when they finish watching, we can ask some belief question of their feeling. After, finding psychologist or professional person to help them analysis and give advice.
After reading, I have a problem. Hypnotherapy is a way to help people out of the pain. But if don't have experience of suffering, how I feel death about this way. Do you have some specific project or idea?