It is a saying that people say when they don’t know how to explain something or when they don’t know the answer to a question. Now that we have learned how to answer and articulate our thoughts and ideas, it is time to sit and really think about the problem. If you are new to it, it might be time to sit and figure out what you know and what you don’t.
It is also a saying that means “think” which is the same as “sitting”. It can be used a lot to mean that you start thinking and mulling over things. It is also a saying that is used to encourage people to sit down and think about something. Sitting is an act that you perform to solve a problem.