N에 차 있다
This pattern means “to be full of” a feeling or state, usually an abstract one such as 기대, 자신감, 의욕, or 설렘. It is formed as noun + 에 + 차 있다, and it sounds somewhat formal or literary. You can reuse it when you want to describe a strong emotional state in polished writing or speech. Example: "그는 발표를 앞두고 자신감에 차 있었다." — "He was full of confidence before the presentation."
그는 발표를 앞두고 자신감에 차 있었다.
He was full of confidence before the presentation.
