i 'd knead it and knead it and then i 'd be carrying it around in a bowl under a cloth , looking for a warm place to put it , because you have to keep it warm or the yeast dies , and i was getting frantic because i could n't find a warm place ; there was a cold wind blowing and the bowl was heavy and slippery and i thought i was going to drop it ; my hands and feet were freezing and going numb .