If there are problems, it is ALWAYS wrong set or setting, worst case both. The only thing that medicine does is to activate the Kundalini and open the chakras. But if the energetic hygiene in the ceremony room is neglected, then the participants become victims not only of their own negative energies, their own „demons“, but also those of others. They then have access to the energy body of the participants through the opened chakras. Some people leave a bad setting energetically „dirtier“ than they went in.