A yojijukugo expressing the Buddhist-inspired idea that life and worldly things are as insubstantial as bubbles and dreams. Used in literary or reflective contexts.
泡沫 means 'bubbles' or 'foam' and is used metaphorically for transience, but 泡沫夢幻 is a fixed four-character compound with a stronger literary and philosophical nuance.
夢幻 means 'dreams' or 'illusions', but 泡沫夢幻 combines both bubbles and dreams to emphasize the insubstantial nature of existence.
Etymology
A yojijukugo combining 泡沫 (bubbles/foam) and 夢幻 (dreams/illusions), reflecting the Buddhist concept of impermanence. The exact historical origin is uncertain, but it is used in classical and literary Japanese.
