“To the soul that doubts how it can ever give birth to Christ through great
acts of holiness, these words are said: ‘The Holy Spirit shall come upon
you’ (Luke 1:35). Where the Holy Spirit is present, do not expect any more
the sequence and laws of nature and habit. The Holy Spirit whom we worship
is all-powerful, and in an astonishing way He brings into existence what
does not yet exist in us. The intellect that was previously defeated He now
makes victorious; for the Paraclete who in compassion comes upon us from
above ‘is higher than all’ (John 3:31), and He raises us above all natural
impulses and demonic passions.”

St. John of Karpathos.