我を

oneself; one’s self

→ 我

phrase Uncommon #14,130

oneself; one’s self In 我を忘れる, it refers to oneself: to forget oneself is to become so absorbed in an emotion or activity that one loses self-awareness.

JA: 彼女は喜びで我を忘れてる。

EN: She’s so overcome with joy that she’s forgotten herself.

彼女はうれしさのあまり我を忘れました。

She was so overjoyed that she lost herself.

我を忘れちゃうもんだよ

You just lose yourself.

— One Cut of the Dead (2017)