True, life is really hard but this video has some truth to it.
If you are good to people some of those people are good to you or others.
You can spread happiness by doing small things for others.
If you think that's dumb think about the last time a stranger was nice to you and how it made you feel.
It is infectious.
This is the only way we humans can continue to exist for a long time maybe even infinity if we are lucky.