Answer: Naturally, as soon as a person begins to ascend spiritually, his body is preserved to the same extent because the soul is developing and the body must help its development.
Question: How does Kabbalah regard personal (bodily) hygiene?
Answer: Hygiene was described in many treatises of the Torah and Talmud 3,000 years ago. They say, “There is no other purity than water.” It was not advised to use soap as often as we do today.
We live in completely different times when pollution of the environment on inanimate, vegetative and animate levels happens unnaturally, unlike in the past. Therefore, previously only soap was recommended, and only in some special cases sand, clay, fats or oils were used.
But ablution in water was always welcome. In the Torah there are clear instructions about this. Once a week before Shabbat people usually dipped into the pool (Mikveh). The entire population went through a very serious physiological purification, not only externally, but also internally.
Our body is tied to the upper level and is a consequence of spiritual roots; therefore, whatever is said about the upper roots relates to the lower ones. There can be no contradiction.
From the Kabbalah Lesson in Russian 8/20/17