Exactly.
And you have to manage the integration rightly. 
I’m curious as to the rationality that supports the sentiment that rationality is overrated. Rationally, one can assume that irrationality is overrated if it can not irrationally rationalize itself.
Look no further than the OP.
I am thinking that perhaps, rationality is over the rating of some people . . .
. . . therefore overrated for those who are not rational.
To rate is to consider to be of a certain quality or standard.
Rationality can be rated as higher than its opposite IE irrationality.
Rationality is overrated in a world full of irrational people - perhaps always.
What I meant by rationality is overrated is that we seem to think that we have to be rational, that if we aren’t that’s something to be ashamed of. It’s like we live in a culture where rationality rules over us rather than we ruling over our rationality (I wonder if this goes all the way back to the Greeks). I tried to argue in this thread that being irrational can have its advantages, and one should not be afraid to be irrational if it seems effective sometimes.
It is irrational to think we should only be rational all the time because we are not machines but human beings
Furthermore there is nothing wrong with being irrational as long as it does not negatively impact upon anyone
It’s a drive-by posting, but I thought perhaps OP might appreciate this:
…^^ The liberal racist’s view of rationality, “He is only trying to explain rationality because he is an insecure, untalented white male”. 
One of the comments about this review:
Yeah, really. The reviewer seems to have some personal issues spilling onto the page.
I’m now tempted to read the book just to see if it’s that bad.
That is exactly the same as saying, “What I meant by health is overrated is that we seem to think that we have to be healthy, that if we aren’t that’s something to be ashamed of”.
Of course, it might take an actual rational mind to see that.
The consequences of irrationality depend on the exact situation.
But those who praise irrationality tend to want to apply it in situations when when rationality is the preferred approach. And just by suggesting that there is a “preferred approach” is “forcing” rationality on them against their will.
Please, give an example, Gib.
It is impossible for a human being to go through life not thinking irrationally even if they think of themselves as rational
Also just as irrational decisions are not always bad then rational ones are not always good no matter what the intention
Irrationality is the absence of rationality.
If you are thinking in a wrong way, you aren’t necessarily thinking in an irrational way.
So irrationality doesn’t mean wrong thinking. It means “not thinking” but “bringing some instinctive or emotional drives into thinking”.
I agree. See…we can agree. 
Or someone stuck in a rationalist’s frame of mind. Your analogy doesn’t hold… at all. When is it ever to one’s benefit to not be healthy?
Whereas striving for health is more or less synonymous with striving for survival, striving for rationality is not. 99% of animals on this planet survive quite well without a mechanism in their brain for “rational thinking”. Most of the human brain helps us survive without having to constantly employ “rational thinking”. 90% of the time, we are governed by instinct, intuition, emotion, fantasy, and a lot of irrational thinking–and for the most part it gets us by. I don’t think we can say the same for being unhealthy.
Playing with your kids.
And seeing as how 99% of animals throughout 99% of our collective evolutionary history have employed that approach, I’d say it can (sometimes) be effective.
Funny, the way that people know what animals are thinking. 
I think there is more to it James
To rate is to consider to be of a certain quality or standard. The rating of rationality can be higher and always is higher than the person trying to be rational.
Rationality is less emotional than the person delivering it.
I am thinking that perhaps, rationality is over the rating of some people . . .
. . . therefore overrated for those who are not rational.
To rate is to consider to be of a certain quality or standard.
Rationality can be rated as higher than its opposite IE irrationality.
Rationality is overrated in a world full of irrational people - perhaps always.
You are not rational when you are playing with your kids?
How much rational thinking do you think animals do, phyllo? (Besides humans).
For what it’s worth, being human myself, I can tell you (from first-hand introspective subjective experience) that rational thinking isn’t the rule across the board for all animal intelligence.
^ Wow, good enough for a quote! Mind if I quote you in my sig, encode?
^ This too. Is this another way of saying the same thing?
So if I am to translate this, you mean to say: rationality is deemed to be of a certain quality or standard in a world full of irrational people? And if it’s overrated, that means its deemed to be such… in excess? Or perhaps deemed to be of a higher quality or standard than it really is? And why by irrational people in particular? Are you saying that the reason rationality is overrated is because the people doing the rating are irrational? That if they were more rational, then rationality would be rated more accurately?
Must decode your encoding, encode.
No… I’m not… am I supposed to feel some kind of cognitive dissonance now? What do you imagine an ir/rational parent doing with their children?
And while I’m at it, I think surreptitious deserves to be quoted for this:
^ So much wisdom packed into such simple words. If you’re reading this surreptitious, mind if I quote you in my sig?