It means to leave the door a little bit open but almost closed.

The different events in our lives

I think, we draw some experiences in our lives from ourselves, even if we don't think about it. Everything, that happens to us, doesn't happen accidentally, it happens for a reason. I have noticed, that I read some things in books, or magazines, or Internet at least, and then I meet several people, and they sincerely want and try to tell me something really new, but these things are the same. They even say the same phrases. It's fantastic. I regard this as a sign from above. And I try to listen and to understand why I need this information, why it came to me at this time. Have you ever felt something like that?

I understand; I agree you (depending on the conversation). It is very informal.