God cannot fill what is full. He can fill only emptiness – deep poverty – and your “yes” [to Jesus] is the beginning of being or becoming empty. It is not how much we really “have” to give – but how empty we are – so that we can receive fully in our life and let him live his life in us. In you today – he wants to relive his complete submission to his father – allow him to do so. Take away your eyes from yourself and rejoice that you have nothing.

Source: Mother Teresa: Come Be My Light: The Private Writings of the Saint of Calcutta