also: ゆめまぼろし
noun
dreams and fantasies; visions; illusory world
Refers to an ephemeral, dreamlike state or a world of illusions, often with a poetic or literary feel. Can be used for both literal dreams and metaphorical fantasies.
彼の絵は夢幻の世界を描いている。
His paintings depict a world of dreams and fantasies.
現実と夢幻の境が曖昧になる。
The boundary between reality and illusion becomes blurred.
Compound of 夢 (dream) and 幻 (phantom, illusion). The reading むげん is the standard Sino-Japanese reading; ゆめまぼろし is a native Japanese reading used for poetic effect.