Raindrops.

The rain poured down, bouncing off the sidewalk. Each droplet shimmered in the air for a split second as it rebounded, a beautiful jewel hung in midair, then came crashine back down and melted away into a puddle. In a way it was like the human existance. Millions of people were hurtling toward the ground, glorified and beautiful for a brief time, and then they melt back away into the rest. A little while later the sun would dry them, and they'd be sent on their way through the precipitation process once more.
Human life was lived in much the same way. We spend every day- every second- dying; hurtling toward out death. The ground, if you will. For a time in everyone's life they feel invincible, like they're on top of the world, and then all too soon they hit the floor and it's all over. They melt away, forgotten by those around them, and fade back into the background with everyone else, in order to make room for the new crowd. Then once the sun dries them... who knows? They could be anywhere, and we'll never know. Until we hit the ground.
Until we melt away with the rain drops.