There is another experience we all share, and it's something described well through a conversation two of our boys had in the backseat of the car. We had just come home from a concert and the conversation went a bit like this. Elliott: "Did you feel it?" Luka: "Feel what?" Elliott: "The electricity." What they were discussing was that feeling you get when you hear that special piece of music or you're watching that movie and the storyline and music rise to catch your heart. We've all felt it; some of us get to feel it often. I've felt it marching with women's rights activists in Nepal and Manila, watching a mum catch her breath with pride as her daughter speaks quietly but with conviction about being discriminated against during a mediation. The electricity didn't seem to stop when I stepped on board the majestic Rainbow Warrior II for an interview as a climate campaigner. It was there, buzzing through a pile of hundreds of letters that sat on the floor of a hotel lobby in Mexico, saved by a former prisoner of conscience, sent by strangers to win him his freedom, and they had. It was there with unhelpful giddiness when I walked in to sit my final exams at Auckland University and then at Oxford.