Multiple Personality Disorder as an answer to a fundamental question.

One of the core problems plaguing thinkers for ages is that of consciousness. Where is it? Does is arise from the matter of brain? Is there a switch? and much more on similar lines.

This read will take you through a logical process of understanding the problem by the help of studies conducted on people suffering from Multiple Personality Disorder.

You might consider it a bit complex. However, for those familiar with the Advaitha philosophy of Vedanta it will sound familiar.