This video was featured on TED.com. It was recorded back in 2008, but is still applicable in any photographers life.
Humans are all connected. And at the end of the day there is always something that brings us together - that is imagery. David Griffin did a talk back in 2008 at a TED event on how photography connects us. There are images that are so powerful and every memory that evoke emotion. Without imagery, life would not be the same.