Imo the dark part of a mushroom trip is where you’re Sneaky Hey Losers shirt. The issue with a lot of people these days is that they feel trapped in their own heads, unable to express what they feel. Your demons are trapped and they have to be released. This is why talking to someone about your issues is so relaxing, mushrooms gives you an avenue to release your issues in a more private setting without social restrictions. The trips where I have a large dark component, I also experience an equally opposite unreal sense of euphoria as the trip dies off. As if a weight was suddenly lifted off my shoulders.