Brahmasiddhi

Brahmasiddhi (Sanskrit: ब्रह्मसिद्धि) is a Sanskrit text of the Indian philosopher Mandan Mishra on Advaita Vedanta.

Etymology
The word Brahmasiddhi is the composition of two Sanskrit words Brahma and Siddhi. Brahma means God and Siddhi means realisation or enlightenment. Thus the literal meaning of the word Brahmasiddhi is "realization of Brahman”.

Description
According to Indian philosophy, the term Brahmasiddhi refers to the “sure knowledge of ultimate reality”. Anirvacaniyatva is one of the most important concept in the text Brahmasiddhi. It is the concept of "inexpressibility of Maya-Avidya as existent or non-existent as identical or different from Brahman." In the text Brahmasiddhi, Mandan Mishra has explained that Avidya is neither the essence of Brahman, nor any other thing. It is neither absolutely non-existent, nor existent. So, it is called as Avidya (ignorance), Maya (illusion), Mithydvabhdsa (false appearance). He further clarified that If it were the essence of a thing, whether distinct from it or not, it would be ultimately real, and so would not be ignorance. If it were absolutely non-existent, it would not be able to enter into practical action like the sky-flower. Hence it is inexpressible.

Similarly another important concept in Brahmasiddhi is Nirupdkhya. It is quite different from the concept of Anirvacaniyatva. The etymological meaning of Nirupdkhya is "indescribable". According to Mandan Mishra "real is describable but it does not mean all that is describable is fully real." According to him "the verbal knowledge of Brahman must be supplemented or transformed by direct knowledge, he nowhere said that Brahman is beyond words."