Psychedelics open your brain. You might not like what falls in

> The experience was quite pleasurable until she started to recall memories of her emotionally abusive father, who had an alcohol addiction. In the weeks following her psilocybin exposure, she had vivid and painful recollections of her childhood, which precipitated an acute depression.

This is what psychedelics can do, they can resurface painful memories and trauma. It's up to the person to (soberly) address this with counseling. I try to see this as a positive thing. If people bottle up trauma it could ruin their whole life since it's never dealt with or addressed.

Psychedelics are not necessarily a feel-good, euphoric kind of drug. They will put you more in touch with reality, both external and internal. Ultimately, that's a good thing, but that's why set and setting are so important. And if you have past traumas that you haven't learned to face, psychedelics make those traumas a lot harder to avoid.