Materialists/physicalists seem to think you should only believe something that's provable. This limits belief to the subset of the physical universe provable by the scientific method.
An example of something not provable but worthy of belief: You meet someone you think you will become lifelong friends with. Certainly there is no scientific proof involved; merely intuition. It's OK to believe you might become lifelong friends with them.
What about scientific speculation; for example, multiple universes? Why do scientists even think about such things if they can't find a way to prove them? It's because they believe they could be true with no evidence they are true.
The existence of the subjective experience of consciousness deviates from the scope of provable science enough to warrant believing it is outside the physical domain. After all, all other emergent properties (such as the surface tension of water) are still physical, having atoms obeying the laws of physics. Yet there is no quantum field called "consciousness", so it may not be physical in essence.
I think there are two aspects to a human being - our intellect and our heart or spirit. I believe that spiritually we can know God exists and that until we spiritually see God we cannot intellectually accept His existence.
I came to know God through a spiritual experience then after that it all made sense intellectually to the point that I’m flabbergasted why everyone can’t see God as it’s as clear as the midday sun but it’s because their spiritual eyes have not seen and the intellect alone cannot embrace God’s existence by itself without spiritual confirmation.
That explains why the to and fro of intellectualising is so slow. It is a step towards finding God but in the end only when the person is spiritually awakened will they know He indeed exists.
But in the process of intellectualising a person may come across something which affects them spiritually and they become enlightened or born spiritually.
So even though people intellectually can’t see God it’s important to keep exploring perchance one day they will be awakened spiritually.