I have frequently heard people saying regarding these beliefs, "its all down to faith/belief", which I think puts feelings of guilt on people to believe sometimes resulting in blind faith or very disturbed individuals who are so caught in a mesh of what they think and what they think they believe. This is a form of brain washing, the use of someone’s need to belong, to have company of like minded people, to be a good person, can be used against them, and too often this can have a bad result for the person, due to feelings of isolation, rejection, yet still have a desire to belong, which can lead to people joining cults, which are far from healthy.
If we use a scientific method to discern that which is true, and that new fact compliments other truths or explains part of the truths or beliefs we have we can not call our faith or belief, a faith or belief but a conviction as it is based on inquiry and discernment of what is & what is not, or to put it another way, using the evidence available to find the answer. With this method their can be four outcomes to our inquiry 1. We find it true, 2. We find it false, 3 we find it neither true nor false, or 4. we find it both true and false.
We all however have faith which cannot be proven such as our loved ones are safe, a trip we are going on will be good, or our life plan will go as planed but these are hopes and wishes and give us something to look forward too, and can not be called faith in the same way a belief in the supernatural is.
So it could be said faith and belief alone is not the right answer, but faith in something being true because we find other things that are related true.