For it only takes seven days to hatch the young.  Then, as they are in need of food so that they may grow, God, in His munificence, grants another seven days to this tiny animal.  All sailors know this, and call these days halcyon days.  If divine Providence has established these marvellous laws in favour of creatures devoid of reason, it is to induce you to ask for your salvation from God.  Is there a wonder which He will not perform for you—you have been made in His image, when for so little a bird, the great, the fearful sea is held in check and is commanded in the midst of winter to be calm.