See ... when we learn self-awareness and get rid of the ego and all the other stuff, we won't mind being told we're stupid. Why? Because we know we are, so it's not shocking to us. As we get deeper into the understanding of it, it's actually kind of fun because often what people see in us is actually a reflection of what they have in their own heart.
If we get defensive ... rather than curious ... well ... any time we get defensive we aren't able to grow. We are stuck.