In an era when our collective notion of “truth” is being balkanized, weaponized, and smashed to smithereens, it’s important to remind ourselves how we go about discerning truth in the first place. In this introductory chapter from The Eye of Spirit, Ken Wilber explores the four primary methods we use to acquire and verify our knowledge, allowing us to escape our current “post-truth” quagmire by bridging the ever-widening divide between conflicting views, values, and verities.