I agree with you that it's not based on logic and reason. And I am OK with that. The mystery and subjectiveness is part of the point and part of reality that we need to grapple with.
"Mystery" and "subjectiveness" are euphemistic descriptions of mythology and fairy tales, used to justify some pretty terrific political and military policies even today. People who go to church are implicitly supporting these things. Some of them have an excuse, in that they were simply raised that way and never had an opportunity for enlightenment. People who should know better don't have that excuse.