Leviticus 15:16 "He shall bathe all his body in water"

Just as the Torah defines the different types of impurity - it also outlines the process for purification.

The Torah describes the purification process, commanding the impure person to immerse himself in a mikveh.

A mikveh is a special pool of water of a specific size.

Its water must come from a natural source, rain or a spring.

In the beginning of the universe, the entire creation emerged from water. After an impure person dips in the mikveh, he rises up as a new creation; purified and prepared to serve HaShem.