A few months ago, 24-year-old Anas Hamra made a "Happy" video about Gaza. If the rest of the world was playing off Pharrell Williams' song, he figured Gaza ought to step up, too. Plus, even with salty tap water and travel restrictions, life in Gaza was not all misery. On Wednesday, Hamra spent 24 hours with his video camera in Shifa Hospital in Gaza and emerged unable to find a word to describe how he feels. The first song that came to mind is "Wake Me Up When It's Over."