It takes practice to use one's eyes, even when God has opened them. And there are some believers who never get beyond confounding a doctrinal statement of a truth with a living exemplification of that truth.
The general notions about human understanding… which are illustrated by discoveries in atomic physics are not in the nature of things wholly unfamiliar, wholly unheard of or new. Even in our own culture they have a history, and in Buddhist and Hindu thought a more considerable and central place. What we shall find [in modern physics] is an exemplification, an encouragement, and a refinement of old wisdom.