What is unusual about this letter here is that is has four “crowns” instead of the usual three. According to the Kabbalist, the B’nei Yissachar, when the four is multiplied by the number nine (the value of the “tet” itself), the total is 36. Abraham was a righteous person whose very life embodied the values of the Hidden Light of creation. But when Isaac was born, he was the first in history to be circumcised on the eighth day. Since eight represents transcending the physical, he became infused with all that "eight" represents (transcendence), raising him forever above the natural world. This is why he, at such a young age warranted to see the Divine Presence like his father. Contrary, to popular legend, Isaac was 37 years old when he was “sacrificed”. According to the mystical tradition, Isaac was a very willing and enthusiastic participant in offering himself up as a sacrifice to G-d, and that although no slaughter took place, Isaac nevertheless left his body. The event took place when Isaac was 37, for the reason that he had already reached his spiritual climax at the end of a complete 36 year life cycle. Now we look at Rachel who gives birth to only two sons. Her first son is Joseph, and the younger one, Benjamin.