Bunyan says "they made up apace" to Christian. It had taken him a long time to get where he was, but they caught up with him in a minute or two. None seemed to grow so rapidly as those who have no roots, and who therefore are not really growing at all. A child, with a farthing's worth of soap and a pipe, soon blows some big bubbles, painted with many colours and sparkling with beauty; but they are only bubbles. They are very quickly produced, and they as speedily vanish. Beware of getting up a sham religion.