Literature Reference: Early plum blossoms, full branches. The east wind heralds spring, yet winter lingers; purple calyxes greet the wind, jade pearls crack. Willows not yet yellow, orioles silent; the pure fragrance drifts, shining on the new moon. By the bridge, a tree grieves parting; wandering travelers do not pluck. Unrivaled in Jiangnan's sunny season, it falls with the east wind, accompanying spring snow. — Excerpt from 'Early Plum Bridge' by Li Shen.