I was taking a walk this evening at the woodland across from my apartment. A lighting bug appeared just in front of me, floating gracefully in the air of the dark. This last time I saw a lighting bug has to date back to more than thirty five years ago in my hometown in Taipei. Back when there were no big crowds nor high rises and the air and the water in rivers were way much cleaner and purer than it is now. So maybe where I am living now becomes more suitable for lightning bugs, the little creature which is always picky for cleaner environment.