If you believe that an electron is a tiny, tiny particle and I explain to you that it is an electromagnetic wave, really, not a tiny little particle, we may have it right, both of us.
Perhaps down to earth materialism and spirituality are just two different perspectives that are equally valid.
We should stop fussing and fighting about who’s right. Maybe we’re wrong both of us. Maybe we’ve both missed the point. Maybe neither quantum physics nor spirituality is possible to comprehend.
When you say you’re absolutely sure that something is true, where did you get that knowledge from? Did you find it on the internet or in a book somewhere? Do you know it in your heart? However, how do you explain that different people can be deeply convinced about something and arrive at different conclusions?