If your just talking in general, I like to write about how I feel at the time, my dad found the journal I was writing in and he made fun of me about everything I wrote and still does to this day (we don't have the best relationship). The best writing memory I have is being in a writing Competition against 9 schools and won third place in it, got a medal and I was so proud of myself even though my dad told me to quit and that I wasn't good at it, got over that and now I'm thinking about writing a book when I get out of high school.
impossible to subdue or defeat; cannot be overcome
Answer:
technically me answering you right now is being an artistic pursuit in a way, but other from that it could be a name they thought of when they were making ranks and thought it was cool