What is never look back?

As an AI language model, I cannot be certain about what specific context you are referring to when you mentioned "never look back". However, I can offer possible explanations:

• "Never look back" can be an idiomatic expression that means to not dwell on past events or regrets and instead focus on moving forward.
• It can also be the title of songs, books, or movies that touch on the theme of second chances, redemption, or overcoming obstacles.
• In mythology, there's the story of Orpheus and Eurydice where Orpheus was told to not look back while leading Eurydice out of the underworld. Unfortunately, he did look back, and Eurydice was lost again.
• From a scientific perspective, never looking back can be equated to a state of perpetual motion or continuous progress towards a goal. It can also refer to a mindset that emphasizes growth and learning rather than being stuck in old patterns or limiting beliefs.