There is many a book available on Lalita Sahasranama. This book is not on, but about Lalita Sahasranama. Paribhasha verses are an insight into, an analysis of, a research paper on and what not, about Lalita Sahasranama. These forty verses apparently look like praising/ bowing to Shreedevee. But it is full of mathematics using Katapayadhi and Bhoota Sankya methods of denoting numerals in Samskrit by letters/ words. Sahasranama about any God is always in the form stotra-s - i.e. verses. Different sages split the verses into 1000 names and thus we get namavali - series of names about that God. There could be minor differences in splitting the verses into name through different schools - however, the total count of 1000 will not be affected. The Paribhasha verses give the rules to divide the 182.5 verses of Lalita Sahasranama Stotra into 1000 names. When these verses are split into names using this method, the verses are split uniquely into 1000 names. Let Shreedevee shower her choicest blessings to all the readers. Om Tat Sat