The ginans are a corpus of South Asian Ismaili religious literature. Their subject matter ranges widely, and includes such topics as divine love, cosmology, meditation, ritual practice, eschatology and ethical behavior. The word 'ginan' is ultimately derived from the Sanskrit root 'jnana' and is etymologically related to the Greek word 'gamma nu omega sigma iota sigma' or 'gnosis', which has derivatives in many languages. Several scholars have noted the dual significance of the term 'ginan' among the Ismailis as referring both to their sacred literature as well as to gnosis. This comprehensive study explores the purport and use of the word 'ginan' in the ginan tradition itself. As most ginans are recited in particular melodies, this study of the ginan tradition is inspired by the organization of the traditional symphony. An extended composition in Western classical music, a symphony is often divided into four movements. Similarly, this study of the "Symphony of Gnosis" is composed of four sections, each exploring different aspects of how the ginan tradition defines itself.