I feel as if someone has opened a door in the side of my head.

我感觉好像有人在我的头部侧面开了一扇门。

youdao

If you feel you've always chosen the wrong person, for one reason or another, your eyes will be opened during this trend and you can turn over a new leaf.

如果你总感觉自己找的人不对，那么这期间你能明辨是非，重新开始。

youdao

The lyrics were totally inappropriate, but as I kept singing, I began to feel better, as if a tiny hole had opened in my heart, letting in a breath of freedom.

CNN: 'The Rose': Living after Japan's disaster