Roget's II: Thesaurus defines grandiosity as "boastful self-importance or display" and offers the words "ostentation," "pomposity" and "pretension" to further illustrate this definition. In short, it is an exaggerated sense of one's importance, power, knowledge or identity. It often has religious overtones. The term "grandiosity" is used to describe the larger-than-life feelings of superiority often experienced by those in a manic episode.
An Example of Grandiosity from our Community:
I am a reasonably good writer and poet ... I thought I was an amazingly talented poet and writer. I composed music, wrote songs, wrote poems, etc. I thought I could do ANYTHING.
I thought God was talking to me in visions. I felt I had a special connection to the universe. I thought maybe I was becoming a Buddha.
--Pendulumgirl on our Main Forum