So many things in spirituality have to be experienced yourself. No one can experience it for you.

So, i can tell you that I know God exists. And, you say, "No, you 'believe' in God". But, that is not true.

However, i very much know that this experience is highly personal, and each person can/may experience completely differently.

But, that said, how long do young kids have to point to the rainbows and describe colors that you cannot see before you start thinking there may be something there?

There was a time when humans were color blind. And we may have started to see colors one sensor at a time (cones, rods…) Today, almost everyone believes there are 7 colors. Even blind people.