noun
ancient dream; fleeting thing
Literary noun evoking a dream from long ago or something as transient as a dream. Often used in poetic or reflective contexts.
旧夢を追うように、彼は古い写真を眺めていた。
As if chasing an ancient dream, he was gazing at old photographs.
栄華も旧夢と消えた。
The glory faded like a fleeting dream.