Imagine being a 15 Billion Year old Proton

You were created in the core of  one of the early Protostars shortly after the Big Bang.   You churned around in the core of your home star for at least 100,000 years before finally reaching the surface and beginning you journy though the cosmos. 

For over 13 billion years you have traveled.  Since time is relative it means nothing to you as you travel at the speed of light. 

When you journey started our sun and earth did not exist.   You were in existence as the stars that make up the heavy elements of our solar system where born, lived, and died.

Finally our solar system formed but your journey was still not over.

You were moving when the Mars sized planet Theia collided with the early Earth  and formed the  Moon.  You were moving as the ocean formed, the atmosphere evolved, and finally life began to thrive. 

You were still moving as multiple waves of extinctions changed the course of life on this planet.  Finally you arrived.  You race in at 186,000 miles a second only to be stopped from reaching the surface of Earth by some numskull whose shadow is proof of your failure.