Sure, but where that is revealed, to me,
is when a prayer is answered for person A
and not person B, for example...also, I believe
the situation you describe exists to reveal those premises.
There is a Scriptural concept, the current model I'm studying
describes it as "Faith-rest," that I believe is hardly understood
by many Christians, and so they don't understand why the faith
that was sufficient to furnish proof of prayer answered as a new
Christian no longer seems to work as one "progresses."
I have a personal example of prayer answered "miraculously"
shortly after I was saved, and my polling of other Christians
by and large reflects similar instances. Now, I lay in bed some nights
pondering if God really exists or not--but I'm recognizing this
for what it is; a way to bring me to Spiritual Rapport, or maturity.
Not a comfortable way, granted; but I know that God exists,
have faith that all this rather uncomfortable stuff is what is best for me,
and so I am able to stay in the moment now, where I would have
sought (and achieved) some temporal escape before;
essentially running from God. And this is starting to pay dividends.
Since that doesn't really address your post, a little story:
A believer was out hiking one day, communing with nature,
and pondering his temporal difficulties, as we all tend to do.
In a somewhat prayerful state of mind, he was wondering why
he did not see more evidence of God in his daily life.
So absorbed was he in his thoughts that he was not
even aware that he had approached a high cliff obliquely,
and placing his right foot down on air,
proceeded to tumble over the edge.
Flailing for a hand-hold as he slid over the edge,
and into space, he uttered a prayer;
"Lord, help me!"
Just then, about ten feet below the edge of the cliff,
a scrub-oak snagged the man's clothing, preventing him
from a fall that would surely have killed him.
He looked up to heaven, and said
"Oh! Never mind!"