The two sides need someone to harmonize and reconcile them.
Tips
usage
Almost entirely literary. You will mostly meet 燮 in the set phrase 燮理阴阳 (to harmonize yin and yang), classically used to praise a prime minister's statecraft. It also survives as a given name.
memory
Picture two fires (火) with speech (言) between them, calmed and brought into balance by a hand (又). Words smoothing out heat into harmony.