I have been shown in regard to the temptations of the young. Satan is ever on their track seeking to lead their inexperienced feet astray, and the youth seem ignorant of his devices. They do not guard themselves against the snares of the devil as they should. This foe is ever watchful, ever vigilant, and when the young cease watching their own hearts, cease guarding themselves, then Satan controls them and employs his arts against them. Secret prayer is the strength of the Christian. He cannot live and flourish in the Lord without constant watchfulness and earnest prayer.... (HP 218.3) MC VC