A: Is Peter on vacation?

B: Yeah, he’s taken a week off. He has been at this job for almost a year, and he felt it was time to take stock and reflect on whether he wanted to stay or move on.

Note: The literal meaning of this idiom is to “physically count things (stock), for example in a shop.” It’s also used as a metaphor for “thinking carefully about a situation in order to make a decision” or “reflecting on one’s life.” For example: After two years spent teaching overseas, she returned home for a month to take stock of her life.