Have you ever sensed or known something without having "tangible proof"? There are those who require some type of "proof " while others don't. Each group can look at the other and wonder "how can they do things that way?!" But the real problem comes in when you judge, making someone (or ourselves) wrong for the way they know or base their actions on.
Unsure which one you are?
Depending upon how well you know me you won't be surprised to know I bought a car not based on the car reports or the Kelley Blue Book but on a voice that said, as I was test driving it, "Take me, I'm yours." I was sold right then and there!
If your eye brows lifted or you rolled your eyes, you are a "I need tangible proof " person; if you nodded along with me you let your intuition be your guide.
Whether you need proof or not, you get stuck whenever you have fixed beliefs of how things should be as you stop being curious. You have debates not dialogs, the kind Plato used in his writing. Dialogs open you up to exploration and deeper understanding instead of being centered on being right. Embracing the many ways of knowing lets you grow even when it isn't comfortable.
Are you ready to be curious again?