春 (spring) is the classical Chinese metaphor for romantic awakening — the season when the world bursts into bloom mirrors the heart's awakening. Common collocations:
春心萌动 (chūnxīn méngdòng, feelings beginning to stir) and
春心荡漾 (chūnxīn dàngyàng, heart fluttering). Often used in literature and song lyrics rather than everyday speech.
