Rav Kook saw anguish of galus (exile) which resulted in separation between Oral and Written Torah. Whatever is happening in Torah is happening in the world. In every generation, Hashem reveals to the Sages current events and where they are found in the Torah. Before Moshiach comes the innate holiness of the Jewish People is being revealed by women covering hair and going to the mikvah. Some marriages are constantly refreshing themselves. Cannot equate a swimming pool with a mikvah. In the voice of Hashem there is no limitation of time.