That's ducking the face value meaning, and you know it.
The only grounds for not taking that understanding is that it would be awkward.
"i know whats in my heart "
Possibly you do. But then so many are so confident about so many different things.
They can't all be right. Which rather undermines the case for confidence as a ground in itself.
"It doesn't matter... " Yes, bend or ignore data to fit the paradigm in place. That's also a popular methodology.
I'd had surprises, big enough to force revolutions in my world-view. disturbing, but at least I know I'm capable of it, should need arise, and aware that due to the intrinsic limitations of human nature the need might just possibly arise, however unlikely that may seem at at any given time.
It's those who are utterly sure with no doubt that I worry about.
I am very nearly certain that their certainty is not, even if only by a little bit, as certain as they think it is.