How am I contradicting myself? Are you implying that the spiritual world is subjective? So it has no objective truth value whatsoever?
I don't believe I've told anyone what they should believe. There remains no sufficient justification for me to conclude that any God, including the God of the Bible, exists.
I'm not really interested in getting you and other theists to not believe in God. I'm more curious about your explanations for your belief in God, and whether you apply those standards for belief consistently to other such claims.
But like I said, the scientific method tells us what is and can certainly help inform your position on what ought to be.
I find it difficult to ascribe the property of "truth" to subjective value assignments like "meaning" and "purpose". It may be true that you find meaning and purpose in your belief in this one particular God, but that doesn't necessitate the objective truth that this God exists. It also doesn't necessitate that this meaning and purpose is the "one true" meaning and purpose (whatever that really means).
What is the spiritual world?