If you say the existence of God can only be found where the light of reason doesn't reach, then the argument is moot. Philosophy is logic, and logic is math--'this, therefore that'. If you can't come to some rational evidence of God's existence, then all you have to go on is 'hearsay' or divine intervention.

The 'hearsay' is really hurting in the credibility department, and the few I've known claiming 'divine intervention' have spent some quality time with psychosis.