(Practical dates: Dàhán typically falls around Jan 20–Feb 4; Lìchūn typically falls Feb 3–5 in the Gregorian calendar. These solar-term markers are astronomical points in the 24-term cycle used to orient seasonal practice.) ( Wikipedia ) 1 — Why this window matters (artistically) The span from Dàhán → Lìchūn is a natural hinge: deep seasonal contraction gives way to the first stirrings of emergence. In 2026 this hinge overlays the sixty-year sexagenary marker known as Bǐng-