In some countries the snowfall gets so heavy that folks have to get right on up there and clear it regularly. Otherwise the roof will fall in under the weight. In the same way in our Spiritual Lives we may experience a period of severe crisis and change in our own Spiritual Lives when the Roof falls in because of build up in the previous period which leads to crisis or collapse. Happily I don't thing this happens to often in peoples lives. I don't think many of us would have the courage to face life at all , for these happenings are of course deeply, deeply traumatic and life changing. In Scripture a very good example of this is found in the Book of Job. Job is doing very,very well for himself. He is very religious, has a big family and is rich and prosperous. Things could not be better. Satan, appearing as a kind of Public Prosecutor appears at the Throne of Heaven accusing Job of only being Faithful because things are well. If however God were to allow Satan to try Job things would be different. God gives Job the nod and Jobs roof falls in. His family dies, he looses all his money and property and falls gravely ill. The roof falls in.