【明報專訊】If the figurative travel bug is an actual parasite (寄生蟲), I will surely suffer a painful death. Early symptoms include being restless and fidgety (坐立不安) at work, and volunteering for any chores that make you leave your seat. If left untreated, the symptoms will soon escalate into a constant state of imagining an adventure in the Sahara Desert or an encounter with a pharoah (法老王) in Cairo (開羅), or checking out the latest theatre gigs in New York (perhaps mostly done through mindless internet surfing in the office). In short, you do everything against the Zen (禪) teaching of being "here, and now". Before long, the distraction will be so great that it has to be curbed by actual travelling.