Life is awesome!
Last night in the sun, over the span of a few seconds, unimaginably intense gravity overcame nuclear forces, and trillions of hydrogen atoms were fused together and turned into half as many helium atoms. The resulting nuclear explosions created and ejected trillions of photons and a bunch of other "stuff." Some of those photons traveled past Earth's orbit at the speed of light, just shy of three hundred million meters per second, and collided with Saturn and its rings and moons.
Some of those photons were absorbed by those objects, and the rest scattered and bounced in an infinite number of directions to continue their journey through space. Most of those photons are still traveling, and many will never again collide with another object.*
However, billions of those photons bounced to Earth, and billions went directly to a telescope in Palomar, California. They were then warped by a two foot diameter lens which focused those photons onto the surface of the lens of my left eye, which in turn focused them even more onto the pinpoint of my retina. The journey for those photons, which lasted for more than an hour, ended there.
When the photons collided with my retina, it triggered nerve impulses that passed via my optic nerve to my brain. My brain then fired off millions of electrochemical signals that were almost instantly processed and interpreted by "me" as an image of Saturn, its rings, and several of its moons.
How cool is that?!
*And something fun to imagine: In a few hundred thousand, million, or billion years, some of those photons that were initially scattered by Saturn during the very same few seconds last night may eventually end their journey on the retina of an alien that's living hundreds of thousands or millions or billions of light years away, and he/she/it will see the exact same thing that I did.