Faith is not justification for belief.

Some people believe on the basis of evidence, others believe on the basis of faith. But a belief based on faith is not really based on anything. Faith is not justification for a belief, but an absence of justification.

The person who is not convinced by any of the argument for God's existence, but chooses to believe in God on the basis of faith is in essence, is saying " There is no epistemic reason to believe in God, but I believe anyway. "

When you believe something on the basis of faith, you are engaged in a kind of wishful thinking. Believing something on the basis of faith is no different from believing something purely because you very much want it to be true. Evidence, or epistemic reasons, on the other hand, do provide a basis for belief. A belief that rests on evidence is supported, in the sense that the evidence is relevant to it's truth. As you add or subtract reasons to believe, the probability of the belief's truth varies accordingly. This is not the case with faith. A belief about which you have all the faith in the world, but only faith, is, for all you know, no more likely to be true than one in which you have little faith, or even, no faith whatsoever.

Faith, often a desperate desire that a belief be true simply makes no difference to the probability that the belief is true. You can have great faith that your freezer will contain ice cream, but that makes no difference to whether, when you open your freezer door, you are likely to find any. If, on the other hand, you have good evidence for your belief that a pint of your favorite ice cream sits on a shelf in your freezer, your belief is justified.

Your longing might be soon justified.