'What do you mean 'no self'? Listener question

I heard Clare say that the self is the experience in the moment. So any idea of self can come up at anytime.I struggle to see the concept of no self. Is there anyone who can help me see more about this?I’ve listened to Safe and part of Home and it’s as though I just don’t understand the language around no self.I also don’t get how to relate to any thoughts that start with ‘I’. How to tell if it’s coming from your true self or the co conditioned self.