The changing states of clean and unclean are inherent in every person because we are always in the process of correction from the complete shattering that happened at the beginning of creation to the complete correction that will be at the end.
Therefore, all my states, both clean and unclean, I must bring to complete unity. Moreover, they work simultaneously. As it is written, “Love will cover all transgressions,” meaning the transgressions remain and love covers them.
“Unclean” is the one who undergoes the period of purification. We don’t in any way destroy the previous unclean states, but we form the clean ones above them and they together lead us to contact with the Creator, which is located between them as a filling between two slices of a sandwich. The filling is the feeling of the Creator, the contact with Him, and two slices of bread are clean and unclean states.
Question: Should the feeling of the unclean state come immediately after we reach the clean state?
Answer: Of course! In order to continue correction! We must maintain both states constantly changing, as in a wheel. Therefore, our advancement is called Ofanim (“Ofen” means wheel). This is how we advance: what is at the bottom rises to the top, and whatever is at the top falls to the bottom. Therefore, there is nothing that wouldn’t simultaneously rise and fall.
A person must understand that both good and bad states, night and day, are connected together. And one works in order to make them both directed to the connection. Then it turns out that “the unclean and the clean alike may eat of them.”
From KabTV’s “Secrets of the Eternal Book” 7/6/16