Longinus defines literary sublimity as 'excellence in language'. The sublime in literature refers to use of language and description that excites thoughts and emotions beyond ordinary experience. The author of sublime defines sublimity in literature as the 'echo of greatness of spirit', that is the moral and imaginative power that pervades his work. This is the first known instance in which greatness in literature is ascribed to qualities innate in the writer rather than his art. The concept of sublime is generally accepted to refer to a style of writing that elevates itself above the ordinary. Longinus sets out five sources of sublimity: great thoughts, strong emotions, certain figures of thought and speech, noble diction, and dignified word arrangement. The effects of sublime are : loss of rationality, an alienation leading to identification with the creative process of the artist and a deep emotion mixed in pleasure and exaltation.