So-called "inspiration" is no more than an extreme example of a process which constantly goes on in the minds of all of us.
Anthony StorrAvoidance behavior is a response designed to protect the infant from behavioral disorganization. If we transfer this concept to adult life, we can see that an avoidant infant might very well develop into a person whose principal need was to find some kind of meaning and order in life which was not entirely, or even chiefly, dependent upon interpersonal relationships
Anthony StorrWhether a belief is considered to be a delusion or not depends partly upon the intensity with which it is defended, and partly upon the numbers of people subscribing to it.
Anthony Storr