When engaging in self-inquiry, seekers often just ask themselves "Where is the I coming from?" but then simply take at face value whatever intuition or feeling that they get in response. The problem is that such a response is often repeatedly misleading. Use a little more discernment: you're looking for the knowledge of how you know that you are. So don't just assume that whatever you think of first when you ask a question like "Who am I?" is correct; use intelligence and understanding and look for the source of your everyday, common sense knowledge that you exist.