(your message) dies a sudden death - Tradução em português

Hi guys, could you please explain this sentence to me?
I don't know the proper meaning of the phase "your message comes alive, or dies a sudden death".


The main focus of your presentation is still you. You are the vehicle through which your message comes alive, or dies a sudden death. But what is the secret to being a more effective you? Do the quiz below and find out.

Thank you!