这个短语如何理解？

- Looking back on the beginning, it was out of nothing more than just a will within.

- I stretched out my arm out of instinct.

- It"s an excerpt out of the novel Pride and Prejudice that I"m going to talk about.

以上3句的out of都可以理解为“出于”，第一句是出于一个意愿，第二句是出于本能，第三句是出于小说《傲慢与偏见》，不过第三句的“出于”更多被翻译为“出自”或者“选自”，中文说法不同，但意思一样。

至于下面这几个，前面搭配一个动词，表示没有了，或用完了，比如：

I’m running out of time.

He was running out of money.

The team is running out of luck.

My phone is running out of power.