A couple of things that I have been thinking about that blow my mind. When you consider the nature of light in space, you realize that the universe is always on Record.

The only reason we see anything with our eyes is because light bounces off it, therefore, this means that light encodes reality that we decode with our brains in order to perceive it. Light is the infinite Record button of time and space.

Once the rays of the sun come into contact with our planet and bounce off into space, traveling into every possible direction, billions of light rays have recorded everything they have come into contact with, and will now travel eternally in space until they come into contact with something else.

This means that your lives here on this Earth are forever recorded in space. Millions of years after you have passed your life/presence/likeness here will be traveling eternally in space, encoded by the light that bounced off you and shot out into space. Therefore, light has immortalized us and it is conceivable that one day, the technology to extract data encoded by light will be available to us, and no doubt, this is precisely what already occurs when we point our telescopes into space. Our telescopes are in fact instruments which we are using to play back what has been recorded in the universe. Even if a star burns out, its light will travel in space forever, and can be perceived.

This means that everything, including ourselves, is eternal, due to the nature of light in space.