"正夢"（ただうま）是由日本歌手Aimer演唱的一首歌曲，收錄於她的專輯《Midnight Sun》中。以下是這首歌的歌詞的英文翻譯：
正夢 (Tada Uma) - Aimer
In the midst of a dream, I reached out my hand
But all I could grasp was empty air
The warmth I felt, it slipped away
Leaving only the cold behind
If I could turn back time, I』d hold on tight
To the moments we shared, so fleeting and bright
But the past is a shadow, it fades in the light
And I』m left here alone in the night
I close my eyes, but the memories remain
Of a love that was real, yet felt like a dream
In the stillness, I hear your voice
Whispering words that I can』t forget
If I could turn back time, I』d hold on tight
To the moments we shared, so fleeting and bright
But the past is a shadow, it fades in the light
And I』m left here alone in the night
The dawn breaks, but the pain lingers on
In the silence, I find my strength
Though the dream is over, the love remains
A part of me, forever unchanged
If I could turn back time, I』d hold on tight
To the moments we shared, so fleeting and bright
But the past is a shadow, it fades in the light
And I』m left here alone in the night
這首歌詞表達了對逝去愛情的懷念與無奈，充滿了感傷與回憶的情感。