And we're back to ridiculing your claim that your belief is "rational". By your own admission you believe a thing not only for which there is no objective, verifiable evidence, but for which there can be no objective, ve3rifiable evidence.
Sorry, that is the very definition of blind faith.
It's irrational to expect physical evidence for spiritual nature.
It's equally irrational to insist that spiritual nature exists without evidence. And your "you get personal evidence" is not sufficient evidence. I am completely open minded. I will believe
anything, no matter how wild, and outrageous, given sufficient evidence. However, the more wild, and outrageous something is, the more firm, and more solid the evidence must be. Anecdotal, unverifiable evidence is the least firm, and least solid evidence possible.
Whether it's due to ignorant lack of comprehension or intentional smug cleverness, you continue to cling to an irrational and illogical argument here. You are literally demanding that I disprove Spiritual Nature in order to prove it. If I could give you clear and definitive physical evidence for Spiritual Nature, then it would cease to be Spiritual Nature and, by definition, become something physically explained or physical in nature.
As I said, there is plenty of evidence for Spiritual Nature... it's just spiritual and not physical and you have to believe in Spiritual Nature to realize it. There is also physical evidence but it will forever remain anecdotal or circumstantial because if it wasn't, then whatever is spiritual would become physical, thereby disproving Spiritual Nature.
And, therein lies your problem. While anecdotes — when true, at least — are nice illustrative stories, they do not constitute evidence. This is because anecdotes only ever apply to individuals or individual experiences and are subject to the biases that this brings with it. It is impossible to say that an individual anecdote is representative and it is also impossible to actually detect the real cause of the anecdote.
For instance, with life-saving medical treatments (say, pills that reduce heart-disease and subsequently lower the death rate), there are some deaths that occur whether or not the medication was taken. Therefore, if someone who is on the medication dies, you cannot tell if they would have died
anyway without it — you can't prove that the medical intervention worked, or not, from the one case study.
It is very rare for an intervention to be, by itself, a
sufficient cause of something. Rather, they tend to change the
probability of a given event occurring. This means, obviously, that one can cherry pick examples that show something does or does not work, regardless of what effect it actually has. For instance, if the municipal government of some city enacts a law to reduce crime, one can find anecdotes "demonstrating" the exact opposite of the law's actual effect, whatever it may be. If it's effective: "Before the law I never had any problems with crime, but since its enactment I've been mugged once and had my house burglarised! This law is useless!" If it's not: "Before the law, I was robbed twice, but ever since the law, I haven't been robbed once! It must be working!"
Ultimately, anecdotal evidence is very prone to false positives.