I have spent my fair share of time with mental patients and they are not so different from regular people, the only difference I see is they create an illusion over the illusion or a dream inside a dream. Let's take the example of the schizophrenic arguing with his cat that thinks he must fight with Jesus to save the world. We all see the problem here, he sees and hears unreal things, his brain is messed up. Another case is the virgin incel that makes all these false, imaginary ideas about women and attraction. An experienced man with women will know he is confused. But what about the single regular guy that believes having a family and being successful will make him happy. The rich and successful man with a family will know this is not entirely true. In a sense I'm implying we are all crazy some more than others. So when do we stop being crazy? I believe the only way is being spiritual and going beyond appearances, concepts, rational mind, emotions and our own little egotistic mind, until we achieved this we are all crazy. What do you think are we all crazy?