A more thorough explanation:

in re propria

In re propria is a Latin term that means "in one's own affairs." It refers to a situation where someone is dealing with their own personal matters.

1. John decided to take a break from work to focus on his health. He needed to take care of himself and deal with his own affairs, so he took a leave of absence.

2. Mary inherited a large sum of money from her grandmother. She needed to manage the money wisely and make decisions about how to invest it. This was an example of her dealing with her own affairs.

These examples illustrate the definition of in re propria because both John and Mary were dealing with their own personal matters. John needed to take care of his health, which was his own affair. Mary inherited money, which was her own affair to manage. In both cases, they were dealing with their own affairs, which is what in re propria means.