Do you believe that in controlled situations under the guidance of a trained professional, LSD could be useful in mental therapy?

Many studies were done which suggested that this could be the case, but they were all shut down when LSD became illegal. LSD is still used, by a variety of people in a variety of places for a variety of reasons. It therefore has a variety of effects, some of which result in bad or even terrifying experiences.

However, I believe that if taken in a safe and comfortable environment, by a stable and curious person, under the guidance of a trained and experienced professional, it could be very useful as a psychological tool.