I found that it is best to have the idea that reason recognizes universals and universals exit in many different areas. For example, principles of morality. This makes the approach of the Rambam to make sense--that the laws of Torah are meant to bring to objective morality.
So even if there are questions about Torah, one does not have to relay on faith alone but also has a justification based on reason.
"Universals" are characteristics that things have in common. For example: I have two pieces of paper in front on me. Do they have something in common? Yes. They are both white. But there are other areas where universals apply. Eg-numbers. Things have numbers in common. They can be two pieces of paper or two rocks. Rules of mathematics or Physics also are universals. E=mc^2 applies to two pieces of paper or rocks. Similarly rules of morality apply to different individuals. It is wrong to steal from .Reuven and also from Jacob. And they are also under the rule that it is wrong to steal.
So where is the role of reason in this? Reason recognizes more than contradictions in definitions. This is the whole point of the Critique of Pure Reason.
There are many reasons to base one's faith on reason, but at least one good one is that ones faith is thus more solid. So when one discovers contradictions or "questions" it is easier to say to oneself, I am not relaying on faith alone but rather I have good reasons for my beliefs.--These reasons are that Torah is to bring to objective morality. It does not add or subtract then if other people are moral or not. What matters is that i should be
I hope this explains why I am not so religious in the traditional sense. I may have found the religious world to be a nightmare. The teachers are vicious Torah scholars that are demons [in that memorable phrase of Rav Nahman] and the followers are lunatics. But Torah has a different basis--reason.
And there is sometimes conflicts between Torah and Reason and in those areas I find answers but my general approach is this is the areas of dinge an sich where reason does not penetrate.