There is a moment when you realize that you are going to have to die in reality, not just pretend to die. Not just read about dying, not just recite Rumi late at night, but really, day by day, hour by hour, moment by moment, go into the darkness of the Love of God and really surrender, a moment when you realize that to do that, you will need Divine courage.
Silence is where we learn to listen, where we learn to see. Holding silence, being held by stillness, people go alone to the wilderness "to stop and see", to renew their vision, to enter the mind ground, to hear the truth, to return to the knowledge of the extensiveness of self and the truth of no self. One seeks solitude to know relatedness. There the unknown, the unarticulated, the unpredictable, the uncontrollable appear as protectors of the present.