God's call is mysterious: it comes in the darkness of faith. It is so fine, so subtle, that it is only with the deepest silence within us that we can hear it. And yet nothing is so decisive and overpowering for a person on this earth, nothing surer or stronger. This call is uninterrupted: God is always calling us! But there are distinctive moments in this call, moments which leave a permanent mark on us -- moments which we never forget.
~ from LETTERS IN THE DESERT by Carlo Carretto