他生活在自己的小天地里。

He lives in a little universe of his own.

《牛津词典》

抑或我们会把自己封闭起来，只做一个小岛，完全困在自己的小天地之中？

Or do we close ourselves down: a small island, trapped in its own smallness?

youdao

简言之，不要呆在自己的小天地里，而是要确保大家都度过一段美好的时光。

In short, get out of your own head and make sure others are having a good time.

youdao