How do we tame our mindset to keep away from sectarian mindset?

The realization that the world is a complex mosaic of human beings incoherently bonded by two relative mindset forces of good and evil must drive us to take some time to go over the burdensome luggage we amassed over the years of our existence among differing cultures and lay out all of them against love and reason to see if they check out. Love and reason IS the missing necessary weight that we must look for to balance our baggage of customs on the scale between good and evil in an attempt to counter evil. The relativity of the mindset is so sectarian and, thus, so scary that you and I are compelled to adopt a universal source of reference to navigate through life strife. How many of us can manage to challenge ourselves to tame and test our mindset for universal correctness?