The Torah, “Exodus” (Pekudei), 39:1-39:2, 39:22, 39:27: And out of the blue, purple, and crimson wool they made the meshwork garments to serve in the Holy, and they made Aaron’s holy garments, as the Lord had commanded Moses. And he made the ephod of gold, blue, purple, and crimson wool and twisted fine linen. And he made the robe of the ephod, the work of a weaver, completely of blue wool. And they made the linen tunics, the work of a weaver, for Aaron and for his sons.
The garments for ministering, the Ephod, Choshen (the robe), are all garments of a totally corrected person that symbolize different Masachim (screens).
It is about levels that we should raise our desires to, the levels of the still, vegetative, and animate, so they will create the right Masach and will enable us to work on the level of the speaking, on the level of the priest.
By reading the description, which is an allegory of the spiritual actions, we have to understand what happens during these actions: where the purple, the scarlet, the Choshen, the ephod, and the Tabernacle are in us, and look for everything internally.
From KabTV’s “Secrets of the Eternal Book” 10/16/13