Gabrielle discusses the holiness of the ten days of repentance, how to “stop, connect and reflect”, and tevilla for erev Yom Kippur.

Here is a list of resources for you:
Taking the Plunge: A Practical and Spiritual Guide to Mikveh by Miriam C. Berkowitz

Total Immersion: A Mikvah Anthology by Rivkah Slonim

From The Eden Center blog:
Finding My Spiritual Voice at the Mikvah” by Shev Simon

Yom Kippur and Immersion: Renewal of Self and Hope for a Good Year by Dr. Naomi Grumet

Framework for Tevilla on erev Yom Kippur by Dr. Naomi Grumet