I can really get very excited about logic, good design or proverbial puzzle pieces falling into place. Positive stimuli, I call them. They ‘click’ in my head, thereby erasing other stimuli. The accompanying feeling reminds me of Tetris: the moment your blocks create a line you see a flash, the mess disappears and there is new room to build. With some nice stimuli up ahead, we can overcome a lot of negative stimuli.