Someone left a comment on YouTube which might be valuable:
Sorry to break it to you guys but detoxification doesn't work the way Scientology practices it. He probably felt high because he was about to pass out. 5 hours a day in a sauna is not good for anybody. The purification rundown has caused many deaths.
https://news.nationalgeographic.com/2018/04/sweating-toxins-myth-detox-facts-saunas-pollutants-science/
More dangerous quackery from the cult.
RE: Magical Witchcraft Scientology Journey of Bobaphet – Part 2 (video/podcast)