I've always felt that Truth and Eternity were much too important for me to settle for mere belief in such things.
Since I was a child, I've striven to only accept those things that I can actually know.
There are different kinds of ‘knowing’. Some people derive convictions from extra-sensory faculties, like intuition or convictions that stem from feeling, not intellect.
As the heroine was asked in the story ‘Contact’, how do you KNOW you love your wife or children? Can you prove it?
Not so good at preparing for the future.
The future is filled with things the past cannot even imagine. Nothing wrong with the past but it helps to keep it in perspective.
BTW there are many concepts which are beyond description and defy factual knowledge. Things like honor, integrity, love, determination, righteousness, holiness, goodness...evil.
Accountants are great at seeing the world in simple boxes and sets of accounts. Disclosure: I started my career as a CPA many, many years ago. I was even heading in that direction at the time.
"If it can't be classified and properly accounted for in the books, perhaps it isn't real?"
As you and I know, whether we "know" or don't know if something is real has NO bearing to its actual existence.
As Hamlet said to Horatio:
There are more things in heaven and earth, Horatio, Than are dreamt of in your philosophy.We know just how true that is because being old we can remember a time when things we take for granted today would have been considered an impossibility.