Belief in God, implies believing in something way higher than yourself; much higher than the ego. What do Atheist believe, which is higher than themselves? Is it prestige and celebrity? When you believe in something higher than yourself, it sets the mental attitude of parent and child, teacher and student, etc. What is the value of that? And why it setting the highest possible potential, also useful?
The analogy is say you played a sport. Professional Sportsmen and Sportswomen all they have favorite players, either from their past, as they developed, or in the present, that they strive to become. If one of your heroes was to become your coach, you would play harder, trying to please them and gain their respect, thereby rising higher. The higher the potential between real and ideal, the stronger the pull/push. This is true for the religious and atheists.
Atheists do the same thing. Many belief in the modern mythology of UFO's and alien life, to set the technical and science bar, even higher, than just temporal earthy. Faith is required, when you only have circumstantial evidence. This creates the same leverage between present and future, but not as strong a pull/push as the concept of God, who is an infinity symbol; the alien to the aliens.
Years ago, as new athletic training techniques were being developed, visualization techniques, even without practice in a real physical way, was found to improve performance; imagine kicking goals or shooting hoops. God and faith is a visualization technique, since it is not material. The visualization pull and push, is still able to work to improve your goals of performance.
Knowing something by heart or root, takes time because that subroutine it lies deeper in the psyche, and the higher potential, allows that to be engrained with visualization, and not just with physical practice. Humility is a neural chemical environment, that can open a gate. It seems to bring one back to early childhood, when the learning potential of the brain is maximized, and parents appear to be much higher in terms of their imaginary or archetypical potential. As we get older, parents become mortal, as our teen ego inflates. We may seek out new role models, with prestige in culture; sports, music, science, to set the potential and open a new gate to the future. Others retain their symbols of infinity, to maintain humility, to keep the gate open, for perpetual growth by visualization.