I’ve been thinking about the cat scans they do of people’s brains while they are thinking, the scans show which part of the brain is in use during a thought or emotion. I was wondering if the reverse was true, if I starting thinking about different parts of my brain working if I would feel or start thinking about different things. I imagined a ying yang symbol superimposed in my brain and started stimulating all the areas of my brain that laid along its lines. I felt strangely calm while I focused on the ying yang in my brain. I then pictured a trident spear and felt somewhat of an adrenaline rush, aggressive type thoughts. And then I pictured this overlaying my brain and had a nut.