Be assured that Christianity is something more than forms and creeds and ceremonies: there is life, and power, and reality, in our holy faith.
Oh this is reality, not a fable, that the Lord Jesus Christ is our friend. And we should not be satisfied until we are brought to this.
If we say we trust in Him, but in reality do not, then God, taking us at our word, lets us see that we do not really confide in Him, and hence failure arises.