Before we came to Barcelona, the counselors and instructors showed us a graph. A long, curvy line showed us the ups and downs we could expect while spending almost a year studying abroad. The excitement of arrival, the frustration of having to shop, get around, and find an apartment in another language and culture, the thrill of actually accomplishing those tasks, the unavoidable homesickness, etc. I glanced at it at the time but shuffled it back into the ream of documents we'd been given. 'Don't tell me how I'll feel,' I probably thought, ' I'll tell you , when it happens.' And through all the good times I've had here in Barcelona, I haven't thought much about that graph. But during the not-so-good times, the days when the entire city seemed to be an implacable force motivated only to bedevil me... I thought about that graph. The damned prophet that had seen all of it coming. Yes, there have been ups and downs this year. But even in the...