Tripurarahasya is based on the spiritual dialogue between Lord Sri Dattatreya and his best disciple Lord Bhargava Jamadagnya Parashuram. Shri Gurudev Shrinivasji gave spiritual discourses on ‘Gnyan Khand’ of Tripurarahasya for fifteen consecutive years. These discourses have been compiled and some of them have been included in this book ‘Rahasyarthaprakash’ – Mahabhashya (Part 4). Lord Shri Dattatreya begins to preach his disciple Bhargava Parashurama, by shedding light on the Nirguna(subtle) and Saguna(gross) forms of Chitashakti Srividya – the divine energy of Parabrahman. While the sermon is going on, Lord Shri Bhargava Parashuram asks questions with humble curiosity and Lord Sridattatreya starts answering his questions. The Tripurarahasya Granth is a dialogue that emerged from such questions and answers between the two supreme incarnate sages. This entire book is divided into three volumes namely Gnyankhand, Mahatmyakhand and Charyakhand. The Gnyankhanda contains the explanation about the formless Parameshwari (supreme) form of Chitashakti Srividya, endowed with infinite power and the transcendental, unmanifest, nirguna, formless, cosmic, transcendental, Parashiva or Sachchidananda Brahmaswarupa form. The fourth volume of this ‘Rahasyarthaprakash’ Mahabhashya includes the discourses given by His Holiness Shrigurudev Shrinivasji on Tripurarahasya-Gnyankhand from 05.06.1999 to 22.02.2000. We believe that these discourses of His Holiness Shri Gurudev Shrinivasaji are capable of revealing the theoretical and practical aspects of Tripurarahasya in the pure intellect of inquisitive seekers and therefore this fourth volume will surely be welcomed by the inquisitive readers like the three volumes published earlier.