This document discusses language ego and learning a second language. It defines language ego as developing a new way of thinking, feeling, and acting when learning a second language. Learning a new language can have side effects like fragility when making mistakes and feeling silly. The document provides applications for teachers, such as supporting students and determining appropriate techniques. It also discusses letting go of your native language identity and making space for your new language identity when learning a second language. The conclusion is that learning a new language is an adventure that allows you to form a new identity and explore new parts of yourself.