A delusion that makes an individual to think that he or she has some great talent, insight, or special connections to important personalities would be classified as grandiose.
A delusion can be defined as a belief that is obviously false in nature and which clearly indicates an abnormality or disconnection in the affected person's thought process.
In this context, a delusion of grandiose is a type of delusion that makes an individual to think that he or she has some great talent, insight, or special connections to important personalities.
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