Trial.

Patriarch Nikon was from the Murom peasants. He lived before the adoption of a dignity in the family and raised three sons. For some reason, his sons died almost immediately-one by one. Surrounded. They sat down with his wife and began to think the Duma: what was left for them now? And both made the decision: to leave for a tonsure. She went to the female monastery. He is in a male monastery, from where he increased to the dignity.
So sometimes life changes us: experiences our faith and fortress of our spirit.

http://askia.ru/journals/deregachh/2012/09/03/deregachh_832.html