Vedder's Lyrics For This Were Inspired By The Writings Of Charles Bukowski. The Writer Was Known To Stay In A Room For Days At A Time Without Coming Out. Vedder On The Origins Of The Song " 'In Hiding' Is Actually Written About Bukowski. Sean Penn Gave Me A Quote That Bukowski Had Said To Him Once And It Was Written Directly From That. He Told Sean That Sometimes He Just Has To Check Out For A Few Days—no People No Nothing. So He Goes In Hiding Then He Gets Back And Has The Will To Live Once Again. Maybe Because Society Takes You Down. For All The Good Things We Offer Each Other Sometimes We Beat Each Other Down." The Album's Liner Notes Features The Quote "The First Human Face You See Will Knock You Back 50%" By Charles Bukowski Attributed To "Buk" In Place Of The Lyrics For The Song.