[Pseudo group portrait, single female protagonist, fictional story (with settings borrowed from other works, does not affect reading, similar to Easter eggs)]
Just say, there must be a God. Thus, God was born.
What is light? People's understanding of light is nothing more than: light is a physical term, and its essence is a flow of photons in a specific frequency band. What if light is a living entity, a higher-dimensional existence?
The day you meet the distant light, can you hold it tightly and fulfill the promise you made since childhood?