calm fields of spring
Archaic expression evoking the peaceful, serene image of spring fields. Found in classical poetry and literature.
春の野に霞たなびき、うぐいすの声が聞こえる。
In the calm fields of spring, a haze hangs and the song of the bush warbler can be heard.
Compound of 春 (haru, 'spring') + の (no, possessive particle) + 野 (no, 'field'). The exact historical derivation is uncertain, but the phrase is conventionally associated with classical Japanese poetry.