In particular moment, we need to ask others some deep questions, in order to better understand each other, or simply want to know some of the answers. The topic is extensive, human nature, human nature, philosophy, ethics etc. It's important to collect some deep questions in some cases.
Deep questions sometimes are not easy to answer, and different occasions require different deep questions, so I suggest you prepare some more deep questions for each kind of conversation, while preparing for follow-up questions, so that the conversation continues. if the conversation can proceed smoothly, I believe you can get a good experience and learned a lot.
Some of these questions might get a bit serious, wisely choosed please.