Historically, Jews are a people of faith, children of generations of faith, and their grasp of certain basic matters is not easily comprehensible to the more rigidly rational approach.
Altogether, faith, in its essence, is beyond the mental grasp of the human mind, and perhaps even of the soul.
It belongs to a realm of existence higher than our normal scope of cognition, where reasoning does not seem to be much use.
Similarly, in the physical life we may know a sensation of nameless fear without any reason; we may experience the inexplicable or visionary.
Yet faith is much higher even than these mystical experiences.
And even if the intellect is needed to make God comprehensible, it is not the mind that grasps God.
–Rabbi Adin Steinsaltz
From "Faith and Prayer," in In the Beginning by Rabbi Adin Steinsaltz