No matter how often you come across the idea that people all over the world are human beings first before anything else, it never really occurs to you to live it.
In a country like India, the seemingly dichotomous relationship between being a member of a clearly defined social class on the one hand, and an ultimate part of the one, eternal soul on the other, the duality of accepting and rejecting this idea becomes mindboggling. But, that's only if you let it get that way. This idea of a human community, one that includes the community of life as well, is the way in which we should possibly aspire to live our lives.
For those who are inclined to believe in a supreme being, or even extraterrestrial life, well, that's another way in which we're not alone. But the important thing is to realize that we're not alone, simply because life is more than just us. If we weren't here at all, ever, life would go on even he it meant going on in another way.
So smile. It's not the end of the world. :-)