the feeling of complete happiness/understanding one gets from any number of things. Such things include listening to a mindblowing guitar riff, or seeing a person you hate get screwed, among countless other things.
After listening to Hysteria, I can hardly think due to the intense mindgasm it brought me to.
After hearing Kristin got fired, I laughed for two straight minutes and smiled for the rest of the week. It was purely mindgasmic.
Mindism is the belief that once you obtain certain knowledge, your mind and intelligence will keep you from the corrupted lies and deceit. Mindism is also closely related to Theoryism in the sense that once someone commits to Mindism they are not bound to what society or the government feeds them that is either a lie or not true. These people are bound to always question things and not accept it as is unless proven true or false.
Me and my friend Janus have both committed to the belief Mindism, which allows us to be more aware of what might be deceitful and or what will benefit us in the long run!