While face to face with the socio-cultural life and the natural panorama of Arunachal, one generally feels motivated and highly delighted to write about its picturesque landscape. A number of efforts have been made to pen down the different fiestas of the state. This book aims to create beliefs of the highlighting cultural fiestas of Arunachal to broaden its impact worldwide. In the title, its various meaning implies the basis upon which such faiths and practices arise. It is obvious that this book will not only enthuse the well-versed readers but will also enrich them further for more information regarding the rich cultural heritage, traditions and beliefs of the entire state.