People in mania are known for flights of fancy and the rapid association of ideas. Of all the forms of intelligence that we may possess, it is only the ability to recognize analogies and build associations that suffers when we go on mood stabilizers. I think it can be a mistake for outsiders to believe that this ability leads to wild, random, and unusable linkages in our mind. I find that my ability to write poetry — meaningful poetry — suffered after I started taking lithium; I lost insights. Of course, many other more negative traits like my irritability, grandiosity, and racing thoughts disappeared so I consider it a net gain.
The things we bring back from our adventures in mania land aren’t all rubbish. Poets such as Shelley and Byron depended on their manic states to generate compelling material. Some scientists have conceived startling new concepts. Isaac Newton is a classic example of a maniac whose insights transformed the science of his day and enabled him to revolutionize mathematics with his invention of calculus. The trouble comes when we try to bring our insights back from the fine and private place of our sickness.
William Knowland’s Flatland — which was written to explain the difficulties inherent in Faith — presents a useful allegory for our struggle to explain what we have found. Imagine a two dimensional figure, say a square. Imagine that it is you. Your perceptions are limited to two dimensions, so while you can make out one dimensional figures such as lines and points, you cannot appreciate three dimensional ones. If you were one dimensional, squares would appear as lines to you. Angles and other aspects of the square would invisible.