I have been interested in the sense of certainty.
As I discussed with other members and observed other threads with similar interests, I think the essence of the certainty as the presumption of permanence/persistence/universality/etc.
When we are certain, we are creating fixation, bondage, binding. At the same time, we are cutting out and eliminating other things and possibilities.
And we do it as if it were for eternity and everywhere and for everyone, and so on, mostly subconsciously.
Now, certainties resulting from logical thinking is often at least a bit more conscious and also easier to revise, while emotional (and usually subconscious) certainties are more deep rooted and often related to core beliefs or core perspectives, usually pretty important for the persona, making it difficult to recognize or to modify/release.
Other than" certainty", there are other words that show we are fixating and presuming the permanence/persistence/universality, like “reality”, “truth”, etc.
For some, “objective” is the expression of certainty (and the presumption of permanence/universality).
While others may use “exist”, “existence”, as the “sure” word, or the word that boost the certainty.
We can observe this by reading people talking about “existence” of something, for example.
In their conversation and perspective, it’s very rare to find any notion of time or location that we can see they are usually presuming (subconsciously and implicitly) the permanence/universality of the said “existence”.
I think naive presumption of permanence/persistence/universality/unconditional-nature will cause one’s thought to be a lot less precise and often confused.
The lack of awareness about applicable perimeter/limit/condition of logic can be fatal for logical thinking.
In other words, unless these naive presumptions (and/or habit of presuming these too easily) are well cleaned and wiped out, we would not be able to think in very logical manner, most probably.
[EDIT]
Related threads:
Fake certainty viewtopic.php?f=1&t=172604
There are no absolute viewtopic.php?f=1&t=172618
I Love Agnostics viewtopic.php?f=1&t=172892
Boundaries viewtopic.php?f=1&t=172662