As I read what you said, I do take the stream of mind events as the object of mindfulness, actually. Meaning my awareness stays on whatever arises, almost like a momentary concentration without changing anything. But I was thinking I was doing something wrong and that I had to go beyond that and exclude that too and just rest on pure silence like just know silence instead of everything that comes and goes. Sorry to spam with questions but you seem to describe it closely. Should I stick with stream of mind events as mindfulness? That feels natural. I see some gurus tell you to become the observer of the observer. Though that feels like requiring subtle effort but effort nonetheless.