*The Big-Knot book is an easy window shows and explains the very important life human care, Human viewing to existence, life, and human, through the Muslims and the old Greeks philosophers view points, the big knot occupied the human mind for ever. - Who created me?, why?, and where and how I will be after death?. * The Big-Knot book is a window to the old Muslims philosophy, shortened and explained an important side of the Islam philosophy, shows you how Muslims looks the existence, Life, Human-being, and debate with logical way the relationship between the human as a rational being and the existence, most of the old Muslims philosophers have not explained their written using a short difficult words to indicate to their points, the book gave a new easy words and explained the meaning using an easy language.