Now this providence exists in several ways in each Sefirah β within it on all its different levels, these being called the Exterior, Interior and Intermediary Vessel. But the main light is the Encompassing Light outside. Both the Inner and Encompassing Light are divided into five levels, corresponding to the five levels of the soul: Nefesh, Ruach, Neshamah, Chayah and Yechidah. The Nefesh, Ruach and Neshamah are clothed respectively in the Exterior, Intermediary and Inner Vessel, while the Chayah and Yechidah encompass the Vessel from the outside as Encompassing Light.
Encompassing Light's Spiritual Journey
Kalach Pitchei Chokhmah 28:14