This clarity made me able to behave normally, which posed some interesting questions. Was everybody seeing this stuff and acting as though they weren't? Was insanity just a matter of dropping the act? If some people didn't see these things, what was the matter with them? Were they blind or something? These questions had me unsettled.
And this was the main precondition, that anything might be something else. Once I'd accepted that, it followed that I might be mad, or that someone might think me mad. How could I say for certain that I wasn't, if I couldn't say for certain that a curtain wasn't a mountain range?
Twenty aspirin, a little slit alongside the veins of the arm, maybe even a bad half hour standing on a roof: We've all had those. And somewhat more dangerous things, like putting a gun in your mouth. But you put it there, you taste it, it's cold and greasy, your finger is on the trigger, and you find that a whole world lies between this moment and the moment you've been planning, when you'll pull the trigger. That world defeats you. You put the gun back in the drawer. You'll have to find another way.