As it is necessary to have repose after action so it is necessary to have a glimpse of the deeper side of life after having performed one's everyday duties. That is why religions have taught prayers, and why churches were built where people could go every day to be in a right atmosphere and to be silent. Now religion has become a secondary thing and man's life has developed with more struggles; naturally a man has hardly time to go to a solitary place or into a church to sit down in silence. Those few who have the time and who care to continue with their religion go once a week to a service.