Exploring relative and ultimate truth through philosophy and subtlety

The insight from the discussion is the distinction between relative truth and ultimate truth, and how various philosophical systems arrange stages of philosophy to represent different levels of truth. It is emphasized that our existence, thoughts, and personalities are real on a relative level, while there's also an ultimate truth to consider. This ultimate truth pertains to increasingly subtle ideas about ourselves or reality that we might be holding onto. The discussion also touches on how evolutionary biology and neuroscience have provided explanations for these truths, somewhat different from those presented by Buddhism.