I am stubborn enough. I don't have to believe it. But, I get wet when I walk in the rain. Teacher might say keep walking, keep walking in the rain. You'll realize it.
Truth is always manifest beyond our belief.
So please do not get frustrated by the question what do we believe. Don't worry about it. God believes in us. So Universal Truth is always manifest in our life. See the flowers are blooming, birds are singing and I am getting old.