Define: Sonder

SONDER (v); "The realization that each random passerby, is living a life as vivid and complex as your own -; populated with their own ambitions, friends, routines, worries, inherited craziness -; an epic story that continues invisibly around you like an anthill sprawling deep underground, with elaborate passageways to thousands of lives that you'll never know existed;; in which, you might appear only once, as an extra sipping coffee in the background, a blur in traffic passing on the highway, as a lighted window at dusk.."; ~The Dictionary Of Obscure Sorrows