be on cloud nine (verb)

1. After receiving a surprise promotion at work, Tom was on cloud nine and joked that he might be mistaken for the company's CEO.

2. As the ghostly figure appeared in front of her, she felt a mixture of fear and exhilaration, being on cloud nine.

3. After winning the national comic book competition, Joe couldn't contain his excitement and was on cloud nine for weeks.

4. Attending the religious ceremony and witnessing the spiritual leader's profound speech, the devotees felt as if they were on cloud nine with enlightenment.