The Yetzer Hara Never Gives Up

A student asks Rabbi Yaron Reuven, what lessons can we learn from the snake shedding it's skin? Rabbi Reuven says, the Yetzer Hara never gives up. If you beat him by doing Tikkun HaBrit, becoming modest, and keeping Shabbat, he will shed his skin and come back with other temptations and tests.