Mars One Mission, http://www.mars-one.com/, if you don't already know is the dream of the Dutchman Bas Lansdorp to establish a human settlement on Mars.
Humanity needs a common goal. It's in human nature to strive, to explore, to expand. Expansion into space is the natural next step for human evolution. We need this to stay alive and healthy as a race.
Think about what would have happened if Christopher Columbus did not have a dream. Think of what we have today because he preserved with his dream.
Please support the Mars One project through donation: http://www.mars-one.com/donate