This introduction is necessary for what is addressed in this writing. Know that what we have endeavored to express relates to the esoterics (people of meaning), while the exoterics (people of expression) are unaware of it. And since the exoterics are completely immersed in disputes, we will not be astonished by their disagreements on this subject. However, we have tried to choose the manner of expression in such a way that every soul might receive something to the extent of their conceptual needs.