When you and the silence become friends, it will speak to you as loudly as anything you could ever hear from the outer world. Soon you will not be able to ignore its voice, which after all is the voice of your own spirit calling to you.
Cultivating our wisdom is one of our most important tasks. If we don't spend enough time alone listening to the counsel of our hearts, then we will never become wise. If we don't spend enough time in the presence of others who try to walk a path of heart, we will never become wise. If we do not cultivate, through prayer or meditation or spiritual practice, a stronger heart that can fly and endure, then we'll never become wise.