The Torah, “Numbers” 8:11 – 8:12, 8:14: Then Aaron shall lift up the Levites as a waving before the Lord on behalf of the children of Israel, that they may serve in the Lord’s service. The Levites shall lay their hands on the heads of the bulls… and the Levites shall become Mine.
The Levites initiate the process of the “purification of the people” through themselves, even though it is not their personal quality. They prepare themselves for receiving the Light, thus elevating the entire people to the level of spiritual correction. This process is called the “formation (enlightenment, education) of the people.”
This is the way Levites engage in overall enlightenment. Those who get close to them begin perceiving the Upper Light and undergo transformations under the influence of the Upper Light.
The transformation they go through is a sacrifice described as: “And the Levites shall lay their hands on the bulls’ heads.”
The phrase “… and the Levites shall become Mine” denotes unification with the Higher Power.
From KabTV’s “Secrets of the Eternal Book” 2/4/15