In a Nutshell: At its heart, 松 (sōng) represents a duality. As a noun, it is the strong, evergreen pine tree that endures harsh winters, symbolizing strength and longevity. As an adjective or verb, it describes a state of non-tension—whether it's loose clothing, relaxed muscles, or a lenient attitude. Think of the pine tree itself: it stands firm and strong, but its branches and needles can sway gently, embodying a kind of relaxed, resilient strength.