The fact that they cannot be refuted by absolutely anyone.
The nine steps of -
Openness
Honesty
Love
Thoughts
Meaning
Understanding
Mind
Morality
Peace and Harmony
Learning and understanding each step is self-explanatory, and so the proof of each becomes obvious.
That will depend on ‘you’, exactly.
Just like I don’t do ‘belief’, ‘debate’, and ‘theory’ I also don’t do ‘evidence’.
Once you understand the proofs for the claims, you will also see how the claims are self-evidently proved True and Right.