How do you write an email for festival leave to boss?

Oh, dude, it's not rocket science. Just start with a casual greeting like "Hey boss," then politely mention you need time off for the festival, specify the dates, and explain why it's important to you. Wrap it up with a thank you and a promise to catch up on work when you get back. It's like writing a note to your teacher in high school, but with less desperation.