The people then climb into coffins and lie down hugging pictures of themselves before a black-clad figure representing the Angel of Death slams the lid of each casket.
The participants remain inside the coffins for 10 minutes.
"The head of the center tells them: 'Now you know what death looks like. You are alive. Fight for Korea,'" French photographer Francoise Huguier, who photographed one of the sessions earlier this year, told CNN.
South Korea has one of the highest suicide rates in the world, with the Korean Neuropsychiatric Association reporting an estimated quarter of the country's workforce suffer from high stress levels.
The experience is billed as an "experimental death in order to better appreciate life," but Huguier expressed doubts about its ability to reduce the country's suicide rate.
"People I met told me it helped them to feel better," Huguier said. "They do believe this is an answer, but I don't."