This document discusses a student's experience in their Transfiguration class where they learn to transform objects like beetles into other objects like buttons or mice. Initially, the student had weak concentration and willpower, which caused them to fail exercises. However, after lessons in Transfiguration their concentration and willpower improved, allowing them to successfully transform objects like turning a beetle into differently colored buttons. The student is now better at Transfiguration due to gaining focus and understanding the importance of willpower.