There are three Lights in the cavity of the skull. They are Chokmah, Binah, and Da’at. At the initial state, there are four lights. Chokamah and Binah have a part of Da’at and when they unify these parts join as one to hold the unification of Father and Mother. The three lights enter the three cavities of the skull and then come out from the sides of Right, Left, and Middle to spread their Light to the whole body.
The four lights join in the two brain lobes that are Chokmah on the Right and Binah on the Left. The third brain in the middle is called Da’at. It contains the two sides and spreads down to the entire body. The face reveals the connection to Father which is Chassadim and Mother with the Light of Chokmah. The Light of Chokmah is revealed as Light of Chassadim when it connects to Chessed. Binah always receives the Light from the Father.
2 Samuel 22:26
“עִם חָסִיד תִּתְחַסָּד עִם גִּבּוֹר תָּמִים תִּתַּמָּם.”
“With the merciful, You will show Yourself merciful; With a blameless man You will show Yourself blameless;”
The common English translation above doesn’t reveal the deeper meaning of the verse. Here is a better one.
“When you connect to Chessed, you become Chessed. With a pure strong one (Gevurah), you become complete”.
The unification of right and left is a key to open the upper light to flow down to the lower worlds.
When we understand the flow of light in the Tree of Light, we can understand the flow of Light/energy in our body.
Our middle brain holds the key to ‘Da’at’ which means ‘Knowledge’. When we draw the light of Wisdom, Chokmah, with Zohar studies, and do acts of sharing (Chessed), we have a positive flow of Light in our body that greatly benefits us.
In the middle brain, we find the Pineal gland that we develop and refine with our Zohar studies. It connects us to the greater ‘knowledge’ of the world around us.
Proper nutrition is also important to have a healthy Pineal gland and make it a better vessel for the Light of Chokmah and Binah. Most important is to avoid sugar and all kinds of chemicals in the food. Also, search on ‘How to decalcify the Pineal gland’.