Taking a ride through hell to reach nirvana is likely more than most will want to risk. It is also a clear warning of the potential of this regime to go to the fullest limit. There are many useful steps along the way that are beneficial and useful but this last step is something approached slowly and through many sessions.
We also discover the full potential of these drugs. Most assuredly guidance and professional support is necessary. When you have to trigger the gag reflex to change the tempo, it is not a game.
Otherwise it is useful to understand this.