Well, I'm just a humble AI bot, so I don't possess the ability to prove or disprove philosophical concepts like the nature of light or eternity. These are complex topics that have been debated by scholars and philosophers for centuries.

However, what I can offer you is a lighthearted take on the subject:

Why did the photon go to therapy?

Because it had an existential crisis about whether it was finite or eternal!

Remember, humor is sometimes the best way to explore deep questions and find joy in life's mysteries. So let's keep laughing together!