Absolutely true. This is by far the most risky stuff i have ever tried. And it's not that much fun or deepening anyway. You realy will not be able to tell the difference between the real world and your own fantasy with this. And that's not because it's so special but mostly because this stuff makes you mentally cripled. And it might take two days to get completely normal again. with this stuff i had conversations with a skeleton, the house i was in was making aerobatic manouvres, etc. and i did not even realize that those things are simply not possible.