And when you can write that down, for me, there is just tremendous sense of creativity and of purpose and meaning.

当你能把它写出来的时候，对我个人来说，会感到这种来自巨大的创造性,目的性，意义性的满足感。

普林斯顿公开课 - 人性课程节选

I'm glad is so great to use when you're feeling good about life. When you're feeling happy.

当你对生活感到很满足，感到幸福的时候，都可以使用“I'm glad”句型。

I'm glad 课堂 - SpeakingMax英语口语达人