Actually, that interaction between irrationality and rationality, i.e the creative process, has produced quite a number of scientific breakthroughs and religious belief of the scientist may have spurred this. So why suppress or belittle it if it benefits man?.
I am not belittling it. I am saying it's cool.
It's pretty interesting to observe what you dub as "the interaction between irrationality and rationality."
I think human brain is not capable of being rational all the time. It's not a defect. It's just how we have evolved. Our brain was developed to the extent that we were able to live and propagate. Not anything more than that. It's the legacy of evolution.