The scope of the search for “who are you” is all comprehensive. You and I cannot fully include this scope in one book. During our quest we will visit infinite stages. Almost all these stages will be excluded from this book. But at 19 special stages we shall describe our findings acquired in the quest for who you are, who you were at the beginning of time before your birth, and who were your ancestors.
The 19 special stages in this book were selected on the basis of the first prime numbers. We choose for primes because this group of numbers is only divisible by one and by itself.
Sometimes primes are seen as solitary outliers with no obvious connections, for they are not composed of other numbers. You and I find prime numbers absolute prime in itself, because all these numbers are complete. Prime numbers are a whole universe in itself. They know no boundaries: they continue into infinity. Also, all other integers can be derives from primes. We stop at prime number seven; otherwise the size of the book will exceed the usual limits. The span of control of most people is limited to seven due to the fact that we have only two hands and ten fingers. With much ingenuity the Mesopotamians were able to count to twelve with one hand using their thumb along the twelve digital bones in their four fingers. By using two hands they could count 12 times 12 until a gross or 144. This twelve-number system is too artificial to our taste for arranging the description of our quest.
Following the prime numbers up to 7, we get the chapter number one, two, three, five and seven.
The description of our quest will end with chapter number zero – a pivotal number – that was discovered rather late. The concept of zero as number is started in India, where only in the 9th century AD practical calculations are performed using zero.
This number zero completes the total number of 19 descriptions of special stages.
The next post will cover the contents of the book
 Source of the image: http://www.ivobrugge.be/cursusweb/csharp/lussen.asp
 See: Enzensberger, Hans Magnus, The Number Devil: A Mathematical Adventure., The third Night