dreamy state of mind; ecstasy; trance
美しい音楽に包まれて夢心地になった。
Wrapped in beautiful music, I became entranced.
夢心地のまま目覚めたくないと思った。
In my dreamy state, I thought I didn't want to wake up.
初めての海外旅行は終始夢心地だった。
My first overseas trip was a dream from start to finish.