I

This is a picture of Earth taken on the Apollo 17 mission in 1972. It shows what our planet looks like from the vantage point of a spacecraft somewhere between the Earth and the Moon. At this distance, incredibly close in planetary terms, a good deal of details can be made out.
Among what appears to be mainly ocean and clouds, we can see Antarctica, almost all of Africa, and the Arabian Peninsula, all with sharp lines and clear colours. The oceans are blue, the ice of Antarctica looks white, and the sands of Sahara come out as yellow-red. It's a map-maker's dream.

What we can't see, is any sign of our own presence on the planet. Although we take pride in and worry about our accomplishments here, from a distance as small as this, there are no cities, monuments or structures. No re-working of the land or communication technology. No religion, or national borders. No Great Wall of China. Just one step back, and the planet might well be free of intelligent life.

Still, though, this is our Earth. This is our home. Our parent. The thing that links us all together. It is, in essence, all we have.

II

This, too, is a picture of Earth, taken by Voyager 1 in 1990. The white little spot in the middle is what Earth looks like, in the reflection of a beam of sunlight and against the noise of background stars, at a distance of five and a half light-hours (about 5.9 billion kilometres, or a bit beyond Pluto).
This is a lot farther away from home, but still not very far. Well within our solar system, and in astronomical terms, our own backyard. Keep going a little while still though, and Earth will no longer be visible at all.

From this point of view, all we are is a little bright spot among others. It doesn't seem very significant in any way.
But it might be worth a second look. That little bright spot is home to everyone you've ever known, talked to, read about or heard of. Every human being who ever lived, every leader, warlord, conqueror, lover, priest, parent, child, hero, villain, teacher, politician, rockstar and moviegod, lived out their lives and dreamt their dreams right there. It's where all our history and all our achievements come from. It's the only world we know to harbour life.
A little bright spot among others.