In the next ten years, I took that letter and followed his footsteps to more than 70 cities, large and small, from Ireland to Taipei, from Paris to Nanchang, from Hangzhou to Hainan, from Mozambique to Florence. I don't remember how many air tickets I bought, nor how many times I walked penniless and helpless on the streets, but I just wanted to follow his footsteps wholeheartedly, because I firmly believed that he must be waiting for me quietly somewhere.