After the death of his mother, it took him a while to pull himself together. Here 'pull himself together' means?

1. Close eyes
2. Take some rest
3. Recover control of one's emotions
4. None of these

“Pull himself together” is an idiom meaning to regain composure, emotional control, or self-discipline after a period of distress, grief, or difficulty. The phrase suggests gathering one’s scattered emotions or resources to function normally again. It derives from the image of collecting or assembling disparate parts into a unified whole. This expression is commonly used when someone needs to overcome emotional challenges and resume daily responsibilities.