It is generally accepted that Guru Nanak (1469-1539CE) is the founder of a new and modern religion, Sikhi (Sikhism). However, Sikhism being practiced today is quite far away from the philosophy promulgated by Guru Nanak. It is due tto the fact that it is being presented under the shadow of Vedantic philosophy. And some Western scholars think Sikhism to be syncretism, a mixture of Hinduism and Islam. First few chapters of this book prepare the minds of the readers how to understand Nanakian Philosophy and thereafter it discusses scientifically and logically the important questions often asked by the inquisitive minds. It is sincerely hoped that understanding of Nanakian Philosophy in its real perspective will lay a foundation for interpreting the Aad Guru Granth Sahib into a standardized English Translation of the Aad Guru Granth Sahib, which could serve as a role model for further translation into other languages of the world. Ultimately it would also help to construct an integrated and precise philosophy of Sikhism. Indroduction / 1 Nanak: The Guru / 14 Philosophy and Religion / 33 Nanakian Philosophy: The Term Defined / 43 Nanakian Philosophy: Explained and Strengthened / 55 Nanakian Methodology / 64 System of Referencing Bani from the Holy Granth of the Sikhs / 74 Misinterpretation of Gurbani / 81 Commencing Verse of The Aad Guru Granth Sahib ੴ / 96 Commencing Verse of The Aad Guru Granth Sahib ਸਤਿ ਨਾਮ ਤੋਂ ਗੁਰ ਪ੍ਰਸਾਦਿ / 136 Concept of God / 141 Concept of God in Nanakian Philosophy / 148 God Vs. Science / 166 Origin of Universe / 176 Hukm: The Laws of Nature / 197 Astrology / 216 Vedas and Yugas / 223 Mantra Systems / 239 Naam Japna and Naam Simrana / 252 Ardaas (Prayer) / 275 Life, Death and Soul / 289 After Death: Heaven or Hell / 315 Food Fads / 323 Nanakian Philosophy and Science / 336 Nanakian Philosophy for World Peace / 351