After study of classical divine Holy books, the unison of contents and in built messages at core has been analyzed and experienced. Japuji Sahib of Holy book Guru Granth Sahib and Srimad Bhagavad Gita of Lord Krishna are studied, analyzed and finally conceived the unison messages at core. This brings out the divine unison and oneness in the different modes of expressions of intrinsic, evolved and mystic core of spirituality. This book deals with analysis of each Pauri of Japuji Sahib in the light of Vedanta philosophy; followed by equivalent Verses of Srimad Bhagavad Gita in Sanskrit, more relevant to the concerned Pauri along with the published explanation. The exact equivalent Verses for each Pauri could not be ascertained. However, book established as sources of unison messages and oneness at the core of these classical wonders. No book on this particular pattern and analysis has appeared so far. This will be an integration of spiritual one-ness as explicitly expressed since source and origin of the mysterious divine knowledge is the same as the one-ness of divinity; thus this establishes as a source, thread of the unison and one-ness of the existing philosophies.