He probably means that it's difficult to develop new concepts with a different paradigm once current paradigms are already known, but I guarantee you that Einstein's persuit to truth didn't involve not thinking or not reasoning.
OK not bad.
He reasoned intuitively and was pretty much always finding himself in resistance to his colleagues.
If you're not advocating abandoning reason, then please provide justification for theism or for why belief in the box is different from belief in gods in principle.
You are starting out here with a preconceived idea which dictates what you consciousness is going to be allowed to see.This is conscious control of reality.
If you relax the consciousness and let go of all of control you will find yourself in the presence of what is all control.
People put many names on it as a box but what really matters is the fact they have let go of egoic control.
Control of consciousness is an illusion so might as well let it go anyway with or without any preconceived ideas of who or what God is.
You find yourself in the ultimate place of peace and love and the wants for control,approval, and survival all dissipate.
If you have ever been frustrated you know the relief that comes when you finally release the thoughts or feelings.It is because your consciousness was locked around particular thoughts and was not free to open and close.
Well just as we can close consciousness off and not see keys that are right in front of our face,we can also open our consciousness by letting go of that we hold onto consciously.
to the extent that it expands people try to describe with all sorts of different boxes.
Conscious awareness can open up to a place where the intellect can't even go.
Most won't allow the awareness to expand past their intellect because of fear.
The debate about the existence of God will go round and around because people do not find God through the intellect but through awareness or as the scripture says in the heart.This is also the place where intuition and wisdom operate.