The Torah, “Exodus” 28:15 – 21: You shall make a breastplate of decision, worked into a design; make it in the style of the ephod: make it of gold, of blue, of purple, and crimson yarns, and of fine twisted linen. …
Set it in mounted stones, in four rows of stones. The first row shall be a row of carnelian, chrysolite, and emerald; the second row: a turquoise, a sapphire, and an amethyst; the third row: a jacinth, an agate, and a crystal; and the fourth row: a beryl, a lapis lazuli, and a jasper. They shall be framed with gold in their mountings. The stones shall correspond [in number] to the names of the sons of Israel; twelve corresponding to their names. They shall be engraved like seals, each with its name, for the twelve tribes.
Twelve stones represent all the desires of the one general soul and the real work because Moses, Aaron, and Aaron’s sons are the link between the Creator and the people through the tens, hundreds, and thousands, heads of tribes and leaders. The breastplate (chosen) refers to the way they should follow and be connected. It’s all the egoistic desires that already operate. Moses and Aaron symbolize the head that thinks, instructs, and decides, while the twelve tribes are the executive part. The choshen provides the connection between the part of the head and the executive part.
On the one hand, the twelve tribes are represented by different stones, each tribe according to its character, its correction, and its form. On the other hand, they are all connected as one unique whole, tightly arranged together in a certain order as one breastplate on Aaron’s chest.
Aaron isn’t just a priest, but the great priest, stemming from the word “saint,” which means that he only has the spirit of love and bestowal. His connection with the twelve tribes is necessary so that they will totally connect to him and under his guidance will attain the same state. The Torah tells us how to reach the state in which everything becomes one whole called Israel, Yashar-El (straight to the Creator).
From Kab TV’s “Secrets of the Eternal Book” 8/19/13