I know it's not particularly happy, but it is a very powerful reminder for me of how I must value this life and become the best person I can be.
And in case you don't know what the picture is, the man burning is a Vietnamese Buddhist monk who sacrificed his life to protest against the oppressive government during the Vietnam War. He meditated for several weeks in preparation and eyewitness said that he did not move a muscle as he was burning. He simply died peacefully and dropped over when he died. Amazing.