The tighter someone clings to an identity, the harder it becomes to grow beyond it, so identity drives change and then blocks the next one.

there's also a flip side to this or a dark side, a shadow side to identity, which is the tighter you cling to an identity, the harder it becomes to grow beyond it. And so once you have started to identify as a certain type of person, once you adopt that label, oh, I am a member of this group or I am the type of person who believes this thing, it becomes hard to stretch and grow outside of that.